Home / 4,777.20-7,156.80-2,929.32

Finding the Fourth Proportional to 4,777.20, 7,156.80 and 2,929.32

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Solution

The fourth proportional to 4,777.20, 7,156.80 and 2,929.32 is: 4,388.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,777.20 : 7,156.80 = 2,929.32 : x
  2. Step 2: Convert to fraction form
    4,777.20/7,156.80 = 2,929.32/x
  3. Step 3: Cross multiply
    4,777.20x = 7,156.80 × 2,929.32
  4. Step 4: Simplify right side
    4,777.20x = 20,964,557.38
  5. Step 5: Solve for x
    x = 20,964,557.38/4,777.20
  6. Step 6: Final answer
    x = 4,388.46

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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.