Home / 1,781.24-2,670.48-1,088.24

Finding the Fourth Proportional to 1,781.24, 2,670.48 and 1,088.24

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Solution

The fourth proportional to 1,781.24, 2,670.48 and 1,088.24 is: 1,631.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,781.24 : 2,670.48 = 1,088.24 : x
  2. Step 2: Convert to fraction form
    1,781.24/2,670.48 = 1,088.24/x
  3. Step 3: Cross multiply
    1,781.24x = 2,670.48 × 1,088.24
  4. Step 4: Simplify right side
    1,781.24x = 2,906,109.80
  5. Step 5: Solve for x
    x = 2,906,109.80/1,781.24
  6. Step 6: Final answer
    x = 1,631.51

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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.