Home / 1,835.11-2,531.28-1,392.04

Finding the Fourth Proportional to 1,835.11, 2,531.28 and 1,392.04

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Solution

The fourth proportional to 1,835.11, 2,531.28 and 1,392.04 is: 1,920.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,835.11 : 2,531.28 = 1,392.04 : x
  2. Step 2: Convert to fraction form
    1,835.11/2,531.28 = 1,392.04/x
  3. Step 3: Cross multiply
    1,835.11x = 2,531.28 × 1,392.04
  4. Step 4: Simplify right side
    1,835.11x = 3,523,643.01
  5. Step 5: Solve for x
    x = 3,523,643.01/1,835.11
  6. Step 6: Final answer
    x = 1,920.13

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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.