Home / 4,772.40-7,158.72-1,851.36

Finding the Fourth Proportional to 4,772.40, 7,158.72 and 1,851.36

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Solution

The fourth proportional to 4,772.40, 7,158.72 and 1,851.36 is: 2,777.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,772.40 : 7,158.72 = 1,851.36 : x
  2. Step 2: Convert to fraction form
    4,772.40/7,158.72 = 1,851.36/x
  3. Step 3: Cross multiply
    4,772.40x = 7,158.72 × 1,851.36
  4. Step 4: Simplify right side
    4,772.40x = 13,253,367.86
  5. Step 5: Solve for x
    x = 13,253,367.86/4,772.40
  6. Step 6: Final answer
    x = 2,777.09

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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.