Home / 5,557.20-8,331.48-1,857.12

Finding the Fourth Proportional to 5,557.20, 8,331.48 and 1,857.12

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Solution

The fourth proportional to 5,557.20, 8,331.48 and 1,857.12 is: 2,784.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,557.20 : 8,331.48 = 1,857.12 : x
  2. Step 2: Convert to fraction form
    5,557.20/8,331.48 = 1,857.12/x
  3. Step 3: Cross multiply
    5,557.20x = 8,331.48 × 1,857.12
  4. Step 4: Simplify right side
    5,557.20x = 15,472,558.14
  5. Step 5: Solve for x
    x = 15,472,558.14/5,557.20
  6. Step 6: Final answer
    x = 2,784.24

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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.