Home / 7,124.50-10,686.62-2,742.91

Finding the Fourth Proportional to 7,124.50, 10,686.62 and 2,742.91

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Solution

The fourth proportional to 7,124.50, 10,686.62 and 2,742.91 is: 4,114.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,124.50 : 10,686.62 = 2,742.91 : x
  2. Step 2: Convert to fraction form
    7,124.50/10,686.62 = 2,742.91/x
  3. Step 3: Cross multiply
    7,124.50x = 10,686.62 × 2,742.91
  4. Step 4: Simplify right side
    7,124.50x = 29,312,383.43
  5. Step 5: Solve for x
    x = 29,312,383.43/7,124.50
  6. Step 6: Final answer
    x = 4,114.31

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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.