Home / 2,880.28-4,320.24-1,031.30

Finding the Fourth Proportional to 2,880.28, 4,320.24 and 1,031.30

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Solution

The fourth proportional to 2,880.28, 4,320.24 and 1,031.30 is: 1,546.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,880.28 : 4,320.24 = 1,031.30 : x
  2. Step 2: Convert to fraction form
    2,880.28/4,320.24 = 1,031.30/x
  3. Step 3: Cross multiply
    2,880.28x = 4,320.24 × 1,031.30
  4. Step 4: Simplify right side
    2,880.28x = 4,455,454.24
  5. Step 5: Solve for x
    x = 4,455,454.24/2,880.28
  6. Step 6: Final answer
    x = 1,546.88

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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.