Home / 4,461.20-6,691.12-1,689.18

Finding the Fourth Proportional to 4,461.20, 6,691.12 and 1,689.18

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Solution

The fourth proportional to 4,461.20, 6,691.12 and 1,689.18 is: 2,533.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,461.20 : 6,691.12 = 1,689.18 : x
  2. Step 2: Convert to fraction form
    4,461.20/6,691.12 = 1,689.18/x
  3. Step 3: Cross multiply
    4,461.20x = 6,691.12 × 1,689.18
  4. Step 4: Simplify right side
    4,461.20x = 11,302,506.08
  5. Step 5: Solve for x
    x = 11,302,506.08/4,461.20
  6. Step 6: Final answer
    x = 2,533.51

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Half scale
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Double scale
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Similar ratio
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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.