Home / 4,887.71-7,331.57-1,189.91

Finding the Fourth Proportional to 4,887.71, 7,331.57 and 1,189.91

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Solution

The fourth proportional to 4,887.71, 7,331.57 and 1,189.91 is: 1,784.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,887.71 : 7,331.57 = 1,189.91 : x
  2. Step 2: Convert to fraction form
    4,887.71/7,331.57 = 1,189.91/x
  3. Step 3: Cross multiply
    4,887.71x = 7,331.57 × 1,189.91
  4. Step 4: Simplify right side
    4,887.71x = 8,723,865.85
  5. Step 5: Solve for x
    x = 8,723,865.85/4,887.71
  6. Step 6: Final answer
    x = 1,784.86

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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.