Home / 5,500.19-7,590.40-3,142.28

Finding the Fourth Proportional to 5,500.19, 7,590.40 and 3,142.28

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Solution

The fourth proportional to 5,500.19, 7,590.40 and 3,142.28 is: 4,336.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,500.19 : 7,590.40 = 3,142.28 : x
  2. Step 2: Convert to fraction form
    5,500.19/7,590.40 = 3,142.28/x
  3. Step 3: Cross multiply
    5,500.19x = 7,590.40 × 3,142.28
  4. Step 4: Simplify right side
    5,500.19x = 23,851,162.11
  5. Step 5: Solve for x
    x = 23,851,162.11/5,500.19
  6. Step 6: Final answer
    x = 4,336.43

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Half scale
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Double scale
Find fourth proportional to 5,501.19, 7,591.78 and 3,143.28
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.