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Finding the Fourth Proportional to 4,409.69, 6,615.50 and 1,487.91

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Solution

The fourth proportional to 4,409.69, 6,615.50 and 1,487.91 is: 2,232.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,409.69 : 6,615.50 = 1,487.91 : x
  2. Step 2: Convert to fraction form
    4,409.69/6,615.50 = 1,487.91/x
  3. Step 3: Cross multiply
    4,409.69x = 6,615.50 × 1,487.91
  4. Step 4: Simplify right side
    4,409.69x = 9,843,268.61
  5. Step 5: Solve for x
    x = 9,843,268.61/4,409.69
  6. Step 6: Final answer
    x = 2,232.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.