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Finding the Fourth Proportional to 5,543.24, 7,643.16 and 4,545.32

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Solution

The fourth proportional to 5,543.24, 7,643.16 and 4,545.32 is: 6,267.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,543.24 : 7,643.16 = 4,545.32 : x
  2. Step 2: Convert to fraction form
    5,543.24/7,643.16 = 4,545.32/x
  3. Step 3: Cross multiply
    5,543.24x = 7,643.16 × 4,545.32
  4. Step 4: Simplify right side
    5,543.24x = 34,740,569.80
  5. Step 5: Solve for x
    x = 34,740,569.80/5,543.24
  6. Step 6: Final answer
    x = 6,267.20

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.