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Finding the Fourth Proportional to 5,398.68, 7,451.55 and 4,203.66

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Solution

The fourth proportional to 5,398.68, 7,451.55 and 4,203.66 is: 5,802.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,398.68 : 7,451.55 = 4,203.66 : x
  2. Step 2: Convert to fraction form
    5,398.68/7,451.55 = 4,203.66/x
  3. Step 3: Cross multiply
    5,398.68x = 7,451.55 × 4,203.66
  4. Step 4: Simplify right side
    5,398.68x = 31,323,782.67
  5. Step 5: Solve for x
    x = 31,323,782.67/5,398.68
  6. Step 6: Final answer
    x = 5,802.12

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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.