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Finding the Fourth Proportional to 3,501.49, 5,252.15 and 869.00

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Solution

The fourth proportional to 3,501.49, 5,252.15 and 869.00 is: 1,303.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,501.49 : 5,252.15 = 869.00 : x
  2. Step 2: Convert to fraction form
    3,501.49/5,252.15 = 869.00/x
  3. Step 3: Cross multiply
    3,501.49x = 5,252.15 × 869.00
  4. Step 4: Simplify right side
    3,501.49x = 4,564,139.80
  5. Step 5: Solve for x
    x = 4,564,139.80/3,501.49
  6. Step 6: Final answer
    x = 1,303.48

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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.