Home / 5,669.40-7,823.32-3,151.20

Finding the Fourth Proportional to 5,669.40, 7,823.32 and 3,151.20

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Solution

The fourth proportional to 5,669.40, 7,823.32 and 3,151.20 is: 4,348.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,669.40 : 7,823.32 = 3,151.20 : x
  2. Step 2: Convert to fraction form
    5,669.40/7,823.32 = 3,151.20/x
  3. Step 3: Cross multiply
    5,669.40x = 7,823.32 × 3,151.20
  4. Step 4: Simplify right side
    5,669.40x = 24,652,845.98
  5. Step 5: Solve for x
    x = 24,652,845.98/5,669.40
  6. Step 6: Final answer
    x = 4,348.40

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.