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Finding the Fourth Proportional to 5,312.12, 7,959.06 and 2,971.62

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Solution

The fourth proportional to 5,312.12, 7,959.06 and 2,971.62 is: 4,452.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,312.12 : 7,959.06 = 2,971.62 : x
  2. Step 2: Convert to fraction form
    5,312.12/7,959.06 = 2,971.62/x
  3. Step 3: Cross multiply
    5,312.12x = 7,959.06 × 2,971.62
  4. Step 4: Simplify right side
    5,312.12x = 23,651,301.88
  5. Step 5: Solve for x
    x = 23,651,301.88/5,312.12
  6. Step 6: Final answer
    x = 4,452.33

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1.5x scale

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.