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Finding the Fourth Proportional to 7,347.60, 10,140.66 and 4,203.18

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Solution

The fourth proportional to 7,347.60, 10,140.66 and 4,203.18 is: 5,800.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,347.60 : 10,140.66 = 4,203.18 : x
  2. Step 2: Convert to fraction form
    7,347.60/10,140.66 = 4,203.18/x
  3. Step 3: Cross multiply
    7,347.60x = 10,140.66 × 4,203.18
  4. Step 4: Simplify right side
    7,347.60x = 42,623,019.30
  5. Step 5: Solve for x
    x = 42,623,019.30/7,347.60
  6. Step 6: Final answer
    x = 5,800.94

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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.