Home / 4,463.28-6,686.28-2,156.40

Finding the Fourth Proportional to 4,463.28, 6,686.28 and 2,156.40

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Solution

The fourth proportional to 4,463.28, 6,686.28 and 2,156.40 is: 3,230.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,463.28 : 6,686.28 = 2,156.40 : x
  2. Step 2: Convert to fraction form
    4,463.28/6,686.28 = 2,156.40/x
  3. Step 3: Cross multiply
    4,463.28x = 6,686.28 × 2,156.40
  4. Step 4: Simplify right side
    4,463.28x = 14,418,294.19
  5. Step 5: Solve for x
    x = 14,418,294.19/4,463.28
  6. Step 6: Final answer
    x = 3,230.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.