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Finding the Fourth Proportional to 1,480.52, 2,041.80 and 1,031.65

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Solution

The fourth proportional to 1,480.52, 2,041.80 and 1,031.65 is: 1,422.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,480.52 : 2,041.80 = 1,031.65 : x
  2. Step 2: Convert to fraction form
    1,480.52/2,041.80 = 1,031.65/x
  3. Step 3: Cross multiply
    1,480.52x = 2,041.80 × 1,031.65
  4. Step 4: Simplify right side
    1,480.52x = 2,106,412.76
  5. Step 5: Solve for x
    x = 2,106,412.76/1,480.52
  6. Step 6: Final answer
    x = 1,422.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.