Home / 2,887.52-4,331.61-1,038.80

Finding the Fourth Proportional to 2,887.52, 4,331.61 and 1,038.80

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Solution

The fourth proportional to 2,887.52, 4,331.61 and 1,038.80 is: 1,558.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,887.52 : 4,331.61 = 1,038.80 : x
  2. Step 2: Convert to fraction form
    2,887.52/4,331.61 = 1,038.80/x
  3. Step 3: Cross multiply
    2,887.52x = 4,331.61 × 1,038.80
  4. Step 4: Simplify right side
    2,887.52x = 4,499,676.47
  5. Step 5: Solve for x
    x = 4,499,676.47/2,887.52
  6. Step 6: Final answer
    x = 1,558.32

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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.