Home / 7,124.72-10,688.34-2,445.23

Finding the Fourth Proportional to 7,124.72, 10,688.34 and 2,445.23

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Solution

The fourth proportional to 7,124.72, 10,688.34 and 2,445.23 is: 3,668.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,124.72 : 10,688.34 = 2,445.23 : x
  2. Step 2: Convert to fraction form
    7,124.72/10,688.34 = 2,445.23/x
  3. Step 3: Cross multiply
    7,124.72x = 10,688.34 × 2,445.23
  4. Step 4: Simplify right side
    7,124.72x = 26,135,449.62
  5. Step 5: Solve for x
    x = 26,135,449.62/7,124.72
  6. Step 6: Final answer
    x = 3,668.28

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Half scale
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Double scale
Find fourth proportional to 7,125.72, 10,689.84 and 2,446.23
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.