Home / 1,352.28-2,028.45-621.66

Finding the Fourth Proportional to 1,352.28, 2,028.45 and 621.66

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Solution

The fourth proportional to 1,352.28, 2,028.45 and 621.66 is: 932.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,352.28 : 2,028.45 = 621.66 : x
  2. Step 2: Convert to fraction form
    1,352.28/2,028.45 = 621.66/x
  3. Step 3: Cross multiply
    1,352.28x = 2,028.45 × 621.66
  4. Step 4: Simplify right side
    1,352.28x = 1,261,006.23
  5. Step 5: Solve for x
    x = 1,261,006.23/1,352.28
  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.