Home / 6,429.72-8,872.95-3,597.11

Finding the Fourth Proportional to 6,429.72, 8,872.95 and 3,597.11

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Solution

The fourth proportional to 6,429.72, 8,872.95 and 3,597.11 is: 4,963.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,429.72 : 8,872.95 = 3,597.11 : x
  2. Step 2: Convert to fraction form
    6,429.72/8,872.95 = 3,597.11/x
  3. Step 3: Cross multiply
    6,429.72x = 8,872.95 × 3,597.11
  4. Step 4: Simplify right side
    6,429.72x = 31,916,932.81
  5. Step 5: Solve for x
    x = 31,916,932.81/6,429.72
  6. Step 6: Final answer
    x = 4,963.97

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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.