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Finding the Fourth Proportional to 6,599.76, 9,105.12 and 4,243.20

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Solution

The fourth proportional to 6,599.76, 9,105.12 and 4,243.20 is: 5,853.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,599.76 : 9,105.12 = 4,243.20 : x
  2. Step 2: Convert to fraction form
    6,599.76/9,105.12 = 4,243.20/x
  3. Step 3: Cross multiply
    6,599.76x = 9,105.12 × 4,243.20
  4. Step 4: Simplify right side
    6,599.76x = 38,634,845.18
  5. Step 5: Solve for x
    x = 38,634,845.18/6,599.76
  6. Step 6: Final answer
    x = 5,853.98

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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.