Home / 7,125.69-10,688.98-2,743.15

Finding the Fourth Proportional to 7,125.69, 10,688.98 and 2,743.15

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Solution

The fourth proportional to 7,125.69, 10,688.98 and 2,743.15 is: 4,114.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,125.69 : 10,688.98 = 2,743.15 : x
  2. Step 2: Convert to fraction form
    7,125.69/10,688.98 = 2,743.15/x
  3. Step 3: Cross multiply
    7,125.69x = 10,688.98 × 2,743.15
  4. Step 4: Simplify right side
    7,125.69x = 29,321,475.49
  5. Step 5: Solve for x
    x = 29,321,475.49/7,125.69
  6. Step 6: Final answer
    x = 4,114.90

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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.