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Finding the Fourth Proportional to 5,307.92, 7,959.80 and 2,346.20

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Solution

The fourth proportional to 5,307.92, 7,959.80 and 2,346.20 is: 3,518.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,307.92 : 7,959.80 = 2,346.20 : x
  2. Step 2: Convert to fraction form
    5,307.92/7,959.80 = 2,346.20/x
  3. Step 3: Cross multiply
    5,307.92x = 7,959.80 × 2,346.20
  4. Step 4: Simplify right side
    5,307.92x = 18,675,282.76
  5. Step 5: Solve for x
    x = 18,675,282.76/5,307.92
  6. Step 6: Final answer
    x = 3,518.38

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.