Home / 2,265.63-3,397.83-621.78

Finding the Fourth Proportional to 2,265.63, 3,397.83 and 621.78

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Solution

The fourth proportional to 2,265.63, 3,397.83 and 621.78 is: 932.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,265.63 : 3,397.83 = 621.78 : x
  2. Step 2: Convert to fraction form
    2,265.63/3,397.83 = 621.78/x
  3. Step 3: Cross multiply
    2,265.63x = 3,397.83 × 621.78
  4. Step 4: Simplify right side
    2,265.63x = 2,112,702.74
  5. Step 5: Solve for x
    x = 2,112,702.74/2,265.63
  6. Step 6: Final answer
    x = 932.50

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1.5x scale

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.