Home / 1,470.25-2,205.33-740.62

Finding the Fourth Proportional to 1,470.25, 2,205.33 and 740.62

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Solution

The fourth proportional to 1,470.25, 2,205.33 and 740.62 is: 1,110.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,470.25 : 2,205.33 = 740.62 : x
  2. Step 2: Convert to fraction form
    1,470.25/2,205.33 = 740.62/x
  3. Step 3: Cross multiply
    1,470.25x = 2,205.33 × 740.62
  4. Step 4: Simplify right side
    1,470.25x = 1,633,311.50
  5. Step 5: Solve for x
    x = 1,633,311.50/1,470.25
  6. Step 6: Final answer
    x = 1,110.91

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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.