Home / 1,020.60-1,527.30-934.20

Finding the Fourth Proportional to 1,020.60, 1,527.30 and 934.20

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Solution

The fourth proportional to 1,020.60, 1,527.30 and 934.20 is: 1,398.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020.60 : 1,527.30 = 934.20 : x
  2. Step 2: Convert to fraction form
    1,020.60/1,527.30 = 934.20/x
  3. Step 3: Cross multiply
    1,020.60x = 1,527.30 × 934.20
  4. Step 4: Simplify right side
    1,020.60x = 1,426,803.66
  5. Step 5: Solve for x
    x = 1,426,803.66/1,020.60
  6. Step 6: Final answer
    x = 1,398.00

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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.