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Finding the Fourth Proportional to 7,800.55, 10,764.92 and 4,263.91

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Solution

The fourth proportional to 7,800.55, 10,764.92 and 4,263.91 is: 5,884.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,800.55 : 10,764.92 = 4,263.91 : x
  2. Step 2: Convert to fraction form
    7,800.55/10,764.92 = 4,263.91/x
  3. Step 3: Cross multiply
    7,800.55x = 10,764.92 × 4,263.91
  4. Step 4: Simplify right side
    7,800.55x = 45,900,650.04
  5. Step 5: Solve for x
    x = 45,900,650.04/7,800.55
  6. Step 6: Final answer
    x = 5,884.28

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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.