Home / 5,453.70-8,179.62-1,557.18

Finding the Fourth Proportional to 5,453.70, 8,179.62 and 1,557.18

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Solution

The fourth proportional to 5,453.70, 8,179.62 and 1,557.18 is: 2,335.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,453.70 : 8,179.62 = 1,557.18 : x
  2. Step 2: Convert to fraction form
    5,453.70/8,179.62 = 1,557.18/x
  3. Step 3: Cross multiply
    5,453.70x = 8,179.62 × 1,557.18
  4. Step 4: Simplify right side
    5,453.70x = 12,737,140.67
  5. Step 5: Solve for x
    x = 12,737,140.67/5,453.70
  6. Step 6: Final answer
    x = 2,335.50

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Half scale
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Double scale
Find fourth proportional to 5,454.70, 8,181.12 and 1,558.18
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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.