Home / 1,861.68-2,569.13-1,022.39

Finding the Fourth Proportional to 1,861.68, 2,569.13 and 1,022.39

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Solution

The fourth proportional to 1,861.68, 2,569.13 and 1,022.39 is: 1,410.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,861.68 : 2,569.13 = 1,022.39 : x
  2. Step 2: Convert to fraction form
    1,861.68/2,569.13 = 1,022.39/x
  3. Step 3: Cross multiply
    1,861.68x = 2,569.13 × 1,022.39
  4. Step 4: Simplify right side
    1,861.68x = 2,626,634.86
  5. Step 5: Solve for x
    x = 2,626,634.86/1,861.68
  6. Step 6: Final answer
    x = 1,410.89

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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.