Home / 2,901.28-4,351.35-1,145.80

Finding the Fourth Proportional to 2,901.28, 4,351.35 and 1,145.80

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Solution

The fourth proportional to 2,901.28, 4,351.35 and 1,145.80 is: 1,718.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,901.28 : 4,351.35 = 1,145.80 : x
  2. Step 2: Convert to fraction form
    2,901.28/4,351.35 = 1,145.80/x
  3. Step 3: Cross multiply
    2,901.28x = 4,351.35 × 1,145.80
  4. Step 4: Simplify right side
    2,901.28x = 4,985,776.83
  5. Step 5: Solve for x
    x = 4,985,776.83/2,901.28
  6. Step 6: Final answer
    x = 1,718.47

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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.