Home / 7,851.53-11,778.56-2,854.36

Finding the Fourth Proportional to 7,851.53, 11,778.56 and 2,854.36

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Solution

The fourth proportional to 7,851.53, 11,778.56 and 2,854.36 is: 4,281.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,851.53 : 11,778.56 = 2,854.36 : x
  2. Step 2: Convert to fraction form
    7,851.53/11,778.56 = 2,854.36/x
  3. Step 3: Cross multiply
    7,851.53x = 11,778.56 × 2,854.36
  4. Step 4: Simplify right side
    7,851.53x = 33,620,211.48
  5. Step 5: Solve for x
    x = 33,620,211.48/7,851.53
  6. Step 6: Final answer
    x = 4,281.99

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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.