Home / 5,178.08-7,151.69-3,417.55

Finding the Fourth Proportional to 5,178.08, 7,151.69 and 3,417.55

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Solution

The fourth proportional to 5,178.08, 7,151.69 and 3,417.55 is: 4,720.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,178.08 : 7,151.69 = 3,417.55 : x
  2. Step 2: Convert to fraction form
    5,178.08/7,151.69 = 3,417.55/x
  3. Step 3: Cross multiply
    5,178.08x = 7,151.69 × 3,417.55
  4. Step 4: Simplify right side
    5,178.08x = 24,441,248.82
  5. Step 5: Solve for x
    x = 24,441,248.82/5,178.08
  6. Step 6: Final answer
    x = 4,720.14

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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.