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Finding the Fourth Proportional to 2,761.00, 4,143.23 and 1,117.55

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Solution

The fourth proportional to 2,761.00, 4,143.23 and 1,117.55 is: 1,677.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,761.00 : 4,143.23 = 1,117.55 : x
  2. Step 2: Convert to fraction form
    2,761.00/4,143.23 = 1,117.55/x
  3. Step 3: Cross multiply
    2,761.00x = 4,143.23 × 1,117.55
  4. Step 4: Simplify right side
    2,761.00x = 4,630,263.71
  5. Step 5: Solve for x
    x = 4,630,263.71/2,761.00
  6. Step 6: Final answer
    x = 1,677.02

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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.