Home / 1,922.97-2,650.95-1,587.15

Finding the Fourth Proportional to 1,922.97, 2,650.95 and 1,587.15

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Solution

The fourth proportional to 1,922.97, 2,650.95 and 1,587.15 is: 2,188.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,922.97 : 2,650.95 = 1,587.15 : x
  2. Step 2: Convert to fraction form
    1,922.97/2,650.95 = 1,587.15/x
  3. Step 3: Cross multiply
    1,922.97x = 2,650.95 × 1,587.15
  4. Step 4: Simplify right side
    1,922.97x = 4,207,455.29
  5. Step 5: Solve for x
    x = 4,207,455.29/1,922.97
  6. Step 6: Final answer
    x = 2,188.00

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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.