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Finding the Fourth Proportional to 2,988.16, 4,482.30 and 797.11

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Solution

The fourth proportional to 2,988.16, 4,482.30 and 797.11 is: 1,195.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,988.16 : 4,482.30 = 797.11 : x
  2. Step 2: Convert to fraction form
    2,988.16/4,482.30 = 797.11/x
  3. Step 3: Cross multiply
    2,988.16x = 4,482.30 × 797.11
  4. Step 4: Simplify right side
    2,988.16x = 3,572,886.15
  5. Step 5: Solve for x
    x = 3,572,886.15/2,988.16
  6. Step 6: Final answer
    x = 1,195.68

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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.