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Finding the Fourth Proportional to 5,578.32, 8,366.40 and 5,300.76

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Solution

The fourth proportional to 5,578.32, 8,366.40 and 5,300.76 is: 7,950.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,578.32 : 8,366.40 = 5,300.76 : x
  2. Step 2: Convert to fraction form
    5,578.32/8,366.40 = 5,300.76/x
  3. Step 3: Cross multiply
    5,578.32x = 8,366.40 × 5,300.76
  4. Step 4: Simplify right side
    5,578.32x = 44,348,278.46
  5. Step 5: Solve for x
    x = 44,348,278.46/5,578.32
  6. Step 6: Final answer
    x = 7,950.11

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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.