Home / 1,785.60-2,675.52-1,418.40

Finding the Fourth Proportional to 1,785.60, 2,675.52 and 1,418.40

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Solution

The fourth proportional to 1,785.60, 2,675.52 and 1,418.40 is: 2,125.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,785.60 : 2,675.52 = 1,418.40 : x
  2. Step 2: Convert to fraction form
    1,785.60/2,675.52 = 1,418.40/x
  3. Step 3: Cross multiply
    1,785.60x = 2,675.52 × 1,418.40
  4. Step 4: Simplify right side
    1,785.60x = 3,794,957.57
  5. Step 5: Solve for x
    x = 3,794,957.57/1,785.60
  6. Step 6: Final answer
    x = 2,125.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.