Home / 1,781.24-2,458.13-1,035.23

Finding the Fourth Proportional to 1,781.24, 2,458.13 and 1,035.23

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Solution

The fourth proportional to 1,781.24, 2,458.13 and 1,035.23 is: 1,428.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,781.24 : 2,458.13 = 1,035.23 : x
  2. Step 2: Convert to fraction form
    1,781.24/2,458.13 = 1,035.23/x
  3. Step 3: Cross multiply
    1,781.24x = 2,458.13 × 1,035.23
  4. Step 4: Simplify right side
    1,781.24x = 2,544,712.45
  5. Step 5: Solve for x
    x = 2,544,712.45/1,781.24
  6. Step 6: Final answer
    x = 1,428.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.