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Finding the Fourth Proportional to 7,406.79, 10,220.95 and 4,048.93

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Solution

The fourth proportional to 7,406.79, 10,220.95 and 4,048.93 is: 5,587.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,406.79 : 10,220.95 = 4,048.93 : x
  2. Step 2: Convert to fraction form
    7,406.79/10,220.95 = 4,048.93/x
  3. Step 3: Cross multiply
    7,406.79x = 10,220.95 × 4,048.93
  4. Step 4: Simplify right side
    7,406.79x = 41,383,928.92
  5. Step 5: Solve for x
    x = 41,383,928.92/7,406.79
  6. Step 6: Final answer
    x = 5,587.30

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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.