Home / 3,572.42-4,931.65-2,379.39

Finding the Fourth Proportional to 3,572.42, 4,931.65 and 2,379.39

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Solution

The fourth proportional to 3,572.42, 4,931.65 and 2,379.39 is: 3,284.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,572.42 : 4,931.65 = 2,379.39 : x
  2. Step 2: Convert to fraction form
    3,572.42/4,931.65 = 2,379.39/x
  3. Step 3: Cross multiply
    3,572.42x = 4,931.65 × 2,379.39
  4. Step 4: Simplify right side
    3,572.42x = 11,734,306.80
  5. Step 5: Solve for x
    x = 11,734,306.80/3,572.42
  6. Step 6: Final answer
    x = 3,284.70

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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.