Home / 5,088.73-7,631.68-1,391.10

Finding the Fourth Proportional to 5,088.73, 7,631.68 and 1,391.10

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Solution

The fourth proportional to 5,088.73, 7,631.68 and 1,391.10 is: 2,086.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,088.73 : 7,631.68 = 1,391.10 : x
  2. Step 2: Convert to fraction form
    5,088.73/7,631.68 = 1,391.10/x
  3. Step 3: Cross multiply
    5,088.73x = 7,631.68 × 1,391.10
  4. Step 4: Simplify right side
    5,088.73x = 10,616,430.05
  5. Step 5: Solve for x
    x = 10,616,430.05/5,088.73
  6. Step 6: Final answer
    x = 2,086.26

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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.