Home / 2,269.60-3,404.40-1,981.60

Finding the Fourth Proportional to 2,269.60, 3,404.40 and 1,981.60

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Solution

The fourth proportional to 2,269.60, 3,404.40 and 1,981.60 is: 2,972.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,269.60 : 3,404.40 = 1,981.60 : x
  2. Step 2: Convert to fraction form
    2,269.60/3,404.40 = 1,981.60/x
  3. Step 3: Cross multiply
    2,269.60x = 3,404.40 × 1,981.60
  4. Step 4: Simplify right side
    2,269.60x = 6,746,159.04
  5. Step 5: Solve for x
    x = 6,746,159.04/2,269.60
  6. Step 6: Final answer
    x = 2,972.40

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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.