Home / 5,635.48-8,456.58-3,138.76

Finding the Fourth Proportional to 5,635.48, 8,456.58 and 3,138.76

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Solution

The fourth proportional to 5,635.48, 8,456.58 and 3,138.76 is: 4,710.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,635.48 : 8,456.58 = 3,138.76 : x
  2. Step 2: Convert to fraction form
    5,635.48/8,456.58 = 3,138.76/x
  3. Step 3: Cross multiply
    5,635.48x = 8,456.58 × 3,138.76
  4. Step 4: Simplify right side
    5,635.48x = 26,543,175.04
  5. Step 5: Solve for x
    x = 26,543,175.04/5,635.48
  6. Step 6: Final answer
    x = 4,710.01

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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.