Home / 2,891.60-4,337.76-1,042.40

Finding the Fourth Proportional to 2,891.60, 4,337.76 and 1,042.40

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Solution

The fourth proportional to 2,891.60, 4,337.76 and 1,042.40 is: 1,563.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,891.60 : 4,337.76 = 1,042.40 : x
  2. Step 2: Convert to fraction form
    2,891.60/4,337.76 = 1,042.40/x
  3. Step 3: Cross multiply
    2,891.60x = 4,337.76 × 1,042.40
  4. Step 4: Simplify right side
    2,891.60x = 4,521,681.02
  5. Step 5: Solve for x
    x = 4,521,681.02/2,891.60
  6. Step 6: Final answer
    x = 1,563.73

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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.