Home / 4,309.10-6,463.72-1,387.42

Finding the Fourth Proportional to 4,309.10, 6,463.72 and 1,387.42

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Solution

The fourth proportional to 4,309.10, 6,463.72 and 1,387.42 is: 2,081.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,309.10 : 6,463.72 = 1,387.42 : x
  2. Step 2: Convert to fraction form
    4,309.10/6,463.72 = 1,387.42/x
  3. Step 3: Cross multiply
    4,309.10x = 6,463.72 × 1,387.42
  4. Step 4: Simplify right side
    4,309.10x = 8,967,894.40
  5. Step 5: Solve for x
    x = 8,967,894.40/4,309.10
  6. Step 6: Final answer
    x = 2,081.15

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1.5x scale

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.