Home / 2,777.04-4,162.40-927.72

Finding the Fourth Proportional to 2,777.04, 4,162.40 and 927.72

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Solution

The fourth proportional to 2,777.04, 4,162.40 and 927.72 is: 1,390.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,777.04 : 4,162.40 = 927.72 : x
  2. Step 2: Convert to fraction form
    2,777.04/4,162.40 = 927.72/x
  3. Step 3: Cross multiply
    2,777.04x = 4,162.40 × 927.72
  4. Step 4: Simplify right side
    2,777.04x = 3,861,541.73
  5. Step 5: Solve for x
    x = 3,861,541.73/2,777.04
  6. Step 6: Final answer
    x = 1,390.52

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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.