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Finding the Fourth Proportional to 1,353.04, 2,032.80 and 867.04

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Solution

The fourth proportional to 1,353.04, 2,032.80 and 867.04 is: 1,302.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,353.04 : 2,032.80 = 867.04 : x
  2. Step 2: Convert to fraction form
    1,353.04/2,032.80 = 867.04/x
  3. Step 3: Cross multiply
    1,353.04x = 2,032.80 × 867.04
  4. Step 4: Simplify right side
    1,353.04x = 1,762,518.91
  5. Step 5: Solve for x
    x = 1,762,518.91/1,353.04
  6. Step 6: Final answer
    x = 1,302.64

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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.