Home / 4,426.12-6,639.16-1,139.22

Finding the Fourth Proportional to 4,426.12, 6,639.16 and 1,139.22

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Solution

The fourth proportional to 4,426.12, 6,639.16 and 1,139.22 is: 1,708.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,426.12 : 6,639.16 = 1,139.22 : x
  2. Step 2: Convert to fraction form
    4,426.12/6,639.16 = 1,139.22/x
  3. Step 3: Cross multiply
    4,426.12x = 6,639.16 × 1,139.22
  4. Step 4: Simplify right side
    4,426.12x = 7,563,463.86
  5. Step 5: Solve for x
    x = 7,563,463.86/4,426.12
  6. Step 6: Final answer
    x = 1,708.82

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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.