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Finding the Fourth Proportional to 3,089.55, 4,263.26 and 1,763

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Solution

The fourth proportional to 3,089.55, 4,263.26 and 1,763 is: 2,432.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,089.55 : 4,263.26 = 1,763 : x
  2. Step 2: Convert to fraction form
    3,089.55/4,263.26 = 1,763/x
  3. Step 3: Cross multiply
    3,089.55x = 4,263.26 × 1,763
  4. Step 4: Simplify right side
    3,089.55x = 7,516,127.38
  5. Step 5: Solve for x
    x = 7,516,127.38/3,089.55
  6. Step 6: Final answer
    x = 2,432.76

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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.