Home / 1,449.02-2,000.80-1,338.46

Finding the Fourth Proportional to 1,449.02, 2,000.80 and 1,338.46

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Solution

The fourth proportional to 1,449.02, 2,000.80 and 1,338.46 is: 1,848.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,449.02 : 2,000.80 = 1,338.46 : x
  2. Step 2: Convert to fraction form
    1,449.02/2,000.80 = 1,338.46/x
  3. Step 3: Cross multiply
    1,449.02x = 2,000.80 × 1,338.46
  4. Step 4: Simplify right side
    1,449.02x = 2,677,987.44
  5. Step 5: Solve for x
    x = 2,677,987.44/1,449.02
  6. Step 6: Final answer
    x = 1,848.13

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1.5x scale

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.