Home / 2,791.40-3,852.11-1,612.47

Finding the Fourth Proportional to 2,791.40, 3,852.11 and 1,612.47

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Solution

The fourth proportional to 2,791.40, 3,852.11 and 1,612.47 is: 2,225.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,791.40 : 3,852.11 = 1,612.47 : x
  2. Step 2: Convert to fraction form
    2,791.40/3,852.11 = 1,612.47/x
  3. Step 3: Cross multiply
    2,791.40x = 3,852.11 × 1,612.47
  4. Step 4: Simplify right side
    2,791.40x = 6,211,403.75
  5. Step 5: Solve for x
    x = 6,211,403.75/2,791.40
  6. Step 6: Final answer
    x = 2,225.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.