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Finding the Fourth Proportional to 8,875, 13,312.44 and 2,301.20

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Solution

The fourth proportional to 8,875, 13,312.44 and 2,301.20 is: 3,451.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,875 : 13,312.44 = 2,301.20 : x
  2. Step 2: Convert to fraction form
    8,875/13,312.44 = 2,301.20/x
  3. Step 3: Cross multiply
    8,875x = 13,312.44 × 2,301.20
  4. Step 4: Simplify right side
    8,875x = 30,634,586.93
  5. Step 5: Solve for x
    x = 30,634,586.93/8,875
  6. Step 6: Final answer
    x = 3,451.78

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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.