Home / 7,851.20-11,774.39-2,852.91

Finding the Fourth Proportional to 7,851.20, 11,774.39 and 2,852.91

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Solution

The fourth proportional to 7,851.20, 11,774.39 and 2,852.91 is: 4,278.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,851.20 : 11,774.39 = 2,852.91 : x
  2. Step 2: Convert to fraction form
    7,851.20/11,774.39 = 2,852.91/x
  3. Step 3: Cross multiply
    7,851.20x = 11,774.39 × 2,852.91
  4. Step 4: Simplify right side
    7,851.20x = 33,591,260.71
  5. Step 5: Solve for x
    x = 33,591,260.71/7,851.20
  6. Step 6: Final answer
    x = 4,278.49

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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.