Home / 5,314.20-7,971.36-1,851.48

Finding the Fourth Proportional to 5,314.20, 7,971.36 and 1,851.48

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Solution

The fourth proportional to 5,314.20, 7,971.36 and 1,851.48 is: 2,777.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,314.20 : 7,971.36 = 1,851.48 : x
  2. Step 2: Convert to fraction form
    5,314.20/7,971.36 = 1,851.48/x
  3. Step 3: Cross multiply
    5,314.20x = 7,971.36 × 1,851.48
  4. Step 4: Simplify right side
    5,314.20x = 14,758,813.61
  5. Step 5: Solve for x
    x = 14,758,813.61/5,314.20
  6. Step 6: Final answer
    x = 2,777.24

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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.