Home / 1,647.04-2,470.40-659.52

Finding the Fourth Proportional to 1,647.04, 2,470.40 and 659.52

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Solution

The fourth proportional to 1,647.04, 2,470.40 and 659.52 is: 989.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,647.04 : 2,470.40 = 659.52 : x
  2. Step 2: Convert to fraction form
    1,647.04/2,470.40 = 659.52/x
  3. Step 3: Cross multiply
    1,647.04x = 2,470.40 × 659.52
  4. Step 4: Simplify right side
    1,647.04x = 1,629,278.21
  5. Step 5: Solve for x
    x = 1,629,278.21/1,647.04
  6. Step 6: Final answer
    x = 989.22

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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.