Home / 3,715.59-5,124.55-3,157.90

Finding the Fourth Proportional to 3,715.59, 5,124.55 and 3,157.90

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Solution

The fourth proportional to 3,715.59, 5,124.55 and 3,157.90 is: 4,355.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,715.59 : 5,124.55 = 3,157.90 : x
  2. Step 2: Convert to fraction form
    3,715.59/5,124.55 = 3,157.90/x
  3. Step 3: Cross multiply
    3,715.59x = 5,124.55 × 3,157.90
  4. Step 4: Simplify right side
    3,715.59x = 16,182,816.45
  5. Step 5: Solve for x
    x = 16,182,816.45/3,715.59
  6. Step 6: Final answer
    x = 4,355.39

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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.