Home / 5,631.77-8,444.61-3,171.40

Finding the Fourth Proportional to 5,631.77, 8,444.61 and 3,171.40

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Solution

The fourth proportional to 5,631.77, 8,444.61 and 3,171.40 is: 4,755.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,631.77 : 8,444.61 = 3,171.40 : x
  2. Step 2: Convert to fraction form
    5,631.77/8,444.61 = 3,171.40/x
  3. Step 3: Cross multiply
    5,631.77x = 8,444.61 × 3,171.40
  4. Step 4: Simplify right side
    5,631.77x = 26,781,215.04
  5. Step 5: Solve for x
    x = 26,781,215.04/5,631.77
  6. Step 6: Final answer
    x = 4,755.38

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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.