Home / 3,424.60-5,132.64-1,780.18

Finding the Fourth Proportional to 3,424.60, 5,132.64 and 1,780.18

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Solution

The fourth proportional to 3,424.60, 5,132.64 and 1,780.18 is: 2,668.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,424.60 : 5,132.64 = 1,780.18 : x
  2. Step 2: Convert to fraction form
    3,424.60/5,132.64 = 1,780.18/x
  3. Step 3: Cross multiply
    3,424.60x = 5,132.64 × 1,780.18
  4. Step 4: Simplify right side
    3,424.60x = 9,137,023.08
  5. Step 5: Solve for x
    x = 9,137,023.08/3,424.60
  6. Step 6: Final answer
    x = 2,668.06

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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.