Home / 6,875.20-9,487.74-3,731.39

Finding the Fourth Proportional to 6,875.20, 9,487.74 and 3,731.39

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Solution

The fourth proportional to 6,875.20, 9,487.74 and 3,731.39 is: 5,149.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,875.20 : 9,487.74 = 3,731.39 : x
  2. Step 2: Convert to fraction form
    6,875.20/9,487.74 = 3,731.39/x
  3. Step 3: Cross multiply
    6,875.20x = 9,487.74 × 3,731.39
  4. Step 4: Simplify right side
    6,875.20x = 35,402,458.16
  5. Step 5: Solve for x
    x = 35,402,458.16/6,875.20
  6. Step 6: Final answer
    x = 5,149.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.