Home / 4,814.92-6,642.13-3,139.13

Finding the Fourth Proportional to 4,814.92, 6,642.13 and 3,139.13

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Solution

The fourth proportional to 4,814.92, 6,642.13 and 3,139.13 is: 4,330.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,814.92 : 6,642.13 = 3,139.13 : x
  2. Step 2: Convert to fraction form
    4,814.92/6,642.13 = 3,139.13/x
  3. Step 3: Cross multiply
    4,814.92x = 6,642.13 × 3,139.13
  4. Step 4: Simplify right side
    4,814.92x = 20,850,509.55
  5. Step 5: Solve for x
    x = 20,850,509.55/4,814.92
  6. Step 6: Final answer
    x = 4,330.40

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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.