Home / 4,887.91-7,331.76-1,190.16

Finding the Fourth Proportional to 4,887.91, 7,331.76 and 1,190.16

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Solution

The fourth proportional to 4,887.91, 7,331.76 and 1,190.16 is: 1,785.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,887.91 : 7,331.76 = 1,190.16 : x
  2. Step 2: Convert to fraction form
    4,887.91/7,331.76 = 1,190.16/x
  3. Step 3: Cross multiply
    4,887.91x = 7,331.76 × 1,190.16
  4. Step 4: Simplify right side
    4,887.91x = 8,725,967.48
  5. Step 5: Solve for x
    x = 8,725,967.48/4,887.91
  6. Step 6: Final answer
    x = 1,785.21

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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.