Home / 1,874.88-2,587.28-1,089.18

Finding the Fourth Proportional to 1,874.88, 2,587.28 and 1,089.18

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Solution

The fourth proportional to 1,874.88, 2,587.28 and 1,089.18 is: 1,503.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,874.88 : 2,587.28 = 1,089.18 : x
  2. Step 2: Convert to fraction form
    1,874.88/2,587.28 = 1,089.18/x
  3. Step 3: Cross multiply
    1,874.88x = 2,587.28 × 1,089.18
  4. Step 4: Simplify right side
    1,874.88x = 2,818,008.18
  5. Step 5: Solve for x
    x = 2,818,008.18/1,874.88
  6. Step 6: Final answer
    x = 1,503.03

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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.