Home / 5,555.61-8,331.39-1,857.02

Finding the Fourth Proportional to 5,555.61, 8,331.39 and 1,857.02

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Solution

The fourth proportional to 5,555.61, 8,331.39 and 1,857.02 is: 2,784.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,555.61 : 8,331.39 = 1,857.02 : x
  2. Step 2: Convert to fraction form
    5,555.61/8,331.39 = 1,857.02/x
  3. Step 3: Cross multiply
    5,555.61x = 8,331.39 × 1,857.02
  4. Step 4: Simplify right side
    5,555.61x = 15,471,516.20
  5. Step 5: Solve for x
    x = 15,471,516.20/5,555.61
  6. Step 6: Final answer
    x = 2,784.85

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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.