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Finding the Fourth Proportional to 6,409.04, 9,615.16 and 1,792

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Solution

The fourth proportional to 6,409.04, 9,615.16 and 1,792 is: 2,688.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,409.04 : 9,615.16 = 1,792 : x
  2. Step 2: Convert to fraction form
    6,409.04/9,615.16 = 1,792/x
  3. Step 3: Cross multiply
    6,409.04x = 9,615.16 × 1,792
  4. Step 4: Simplify right side
    6,409.04x = 17,230,366.72
  5. Step 5: Solve for x
    x = 17,230,366.72/6,409.04
  6. Step 6: Final answer
    x = 2,688.45

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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.