Home / 4,887.89-7,331.81-1,190.10

Finding the Fourth Proportional to 4,887.89, 7,331.81 and 1,190.10

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Solution

The fourth proportional to 4,887.89, 7,331.81 and 1,190.10 is: 1,785.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,887.89 : 7,331.81 = 1,190.10 : x
  2. Step 2: Convert to fraction form
    4,887.89/7,331.81 = 1,190.10/x
  3. Step 3: Cross multiply
    4,887.89x = 7,331.81 × 1,190.10
  4. Step 4: Simplify right side
    4,887.89x = 8,725,581.13
  5. Step 5: Solve for x
    x = 8,725,581.13/4,887.89
  6. Step 6: Final answer
    x = 1,785.14

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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.