Home / 4,747.20-6,551.16-3,421.32

Finding the Fourth Proportional to 4,747.20, 6,551.16 and 3,421.32

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Solution

The fourth proportional to 4,747.20, 6,551.16 and 3,421.32 is: 4,721.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,747.20 : 6,551.16 = 3,421.32 : x
  2. Step 2: Convert to fraction form
    4,747.20/6,551.16 = 3,421.32/x
  3. Step 3: Cross multiply
    4,747.20x = 6,551.16 × 3,421.32
  4. Step 4: Simplify right side
    4,747.20x = 22,413,614.73
  5. Step 5: Solve for x
    x = 22,413,614.73/4,747.20
  6. Step 6: Final answer
    x = 4,721.44

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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.