Home / 4,887.80-7,331.33-1,555.92

Finding the Fourth Proportional to 4,887.80, 7,331.33 and 1,555.92

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Solution

The fourth proportional to 4,887.80, 7,331.33 and 1,555.92 is: 2,333.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,887.80 : 7,331.33 = 1,555.92 : x
  2. Step 2: Convert to fraction form
    4,887.80/7,331.33 = 1,555.92/x
  3. Step 3: Cross multiply
    4,887.80x = 7,331.33 × 1,555.92
  4. Step 4: Simplify right side
    4,887.80x = 11,406,966.86
  5. Step 5: Solve for x
    x = 11,406,966.86/4,887.80
  6. Step 6: Final answer
    x = 2,333.76

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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.