Home / 5,138.10-7,707.15-4,433.40

Finding the Fourth Proportional to 5,138.10, 7,707.15 and 4,433.40

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Solution

The fourth proportional to 5,138.10, 7,707.15 and 4,433.40 is: 6,650.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,138.10 : 7,707.15 = 4,433.40 : x
  2. Step 2: Convert to fraction form
    5,138.10/7,707.15 = 4,433.40/x
  3. Step 3: Cross multiply
    5,138.10x = 7,707.15 × 4,433.40
  4. Step 4: Simplify right side
    5,138.10x = 34,168,878.81
  5. Step 5: Solve for x
    x = 34,168,878.81/5,138.10
  6. Step 6: Final answer
    x = 6,650.10

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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.