Home / 2,277.28-3,415.80-738.16

Finding the Fourth Proportional to 2,277.28, 3,415.80 and 738.16

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Solution

The fourth proportional to 2,277.28, 3,415.80 and 738.16 is: 1,107.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,277.28 : 3,415.80 = 738.16 : x
  2. Step 2: Convert to fraction form
    2,277.28/3,415.80 = 738.16/x
  3. Step 3: Cross multiply
    2,277.28x = 3,415.80 × 738.16
  4. Step 4: Simplify right side
    2,277.28x = 2,521,406.93
  5. Step 5: Solve for x
    x = 2,521,406.93/2,277.28
  6. Step 6: Final answer
    x = 1,107.20

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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.