Home / 2,775.28-4,162.84-927.32

Finding the Fourth Proportional to 2,775.28, 4,162.84 and 927.32

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Solution

The fourth proportional to 2,775.28, 4,162.84 and 927.32 is: 1,390.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,775.28 : 4,162.84 = 927.32 : x
  2. Step 2: Convert to fraction form
    2,775.28/4,162.84 = 927.32/x
  3. Step 3: Cross multiply
    2,775.28x = 4,162.84 × 927.32
  4. Step 4: Simplify right side
    2,775.28x = 3,860,284.79
  5. Step 5: Solve for x
    x = 3,860,284.79/2,775.28
  6. Step 6: Final answer
    x = 1,390.95

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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.