Home / 2,913.60-4,020.42-1,654.20

Finding the Fourth Proportional to 2,913.60, 4,020.42 and 1,654.20

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Solution

The fourth proportional to 2,913.60, 4,020.42 and 1,654.20 is: 2,282.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,913.60 : 4,020.42 = 1,654.20 : x
  2. Step 2: Convert to fraction form
    2,913.60/4,020.42 = 1,654.20/x
  3. Step 3: Cross multiply
    2,913.60x = 4,020.42 × 1,654.20
  4. Step 4: Simplify right side
    2,913.60x = 6,650,578.76
  5. Step 5: Solve for x
    x = 6,650,578.76/2,913.60
  6. Step 6: Final answer
    x = 2,282.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.