Home / 2,169.60-3,248.10-1,624.20

Finding the Fourth Proportional to 2,169.60, 3,248.10 and 1,624.20

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Solution

The fourth proportional to 2,169.60, 3,248.10 and 1,624.20 is: 2,431.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,169.60 : 3,248.10 = 1,624.20 : x
  2. Step 2: Convert to fraction form
    2,169.60/3,248.10 = 1,624.20/x
  3. Step 3: Cross multiply
    2,169.60x = 3,248.10 × 1,624.20
  4. Step 4: Simplify right side
    2,169.60x = 5,275,564.02
  5. Step 5: Solve for x
    x = 5,275,564.02/2,169.60
  6. Step 6: Final answer
    x = 2,431.58

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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.