Home / 6,875.40-9,487.98-3,731.64

Finding the Fourth Proportional to 6,875.40, 9,487.98 and 3,731.64

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Solution

The fourth proportional to 6,875.40, 9,487.98 and 3,731.64 is: 5,149.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,875.40 : 9,487.98 = 3,731.64 : x
  2. Step 2: Convert to fraction form
    6,875.40/9,487.98 = 3,731.64/x
  3. Step 3: Cross multiply
    6,875.40x = 9,487.98 × 3,731.64
  4. Step 4: Simplify right side
    6,875.40x = 35,405,725.69
  5. Step 5: Solve for x
    x = 35,405,725.69/6,875.40
  6. Step 6: Final answer
    x = 5,149.62

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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.