Home / 1,348.22-2,008.70-1,329.20

Finding the Fourth Proportional to 1,348.22, 2,008.70 and 1,329.20

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Solution

The fourth proportional to 1,348.22, 2,008.70 and 1,329.20 is: 1,980.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,348.22 : 2,008.70 = 1,329.20 : x
  2. Step 2: Convert to fraction form
    1,348.22/2,008.70 = 1,329.20/x
  3. Step 3: Cross multiply
    1,348.22x = 2,008.70 × 1,329.20
  4. Step 4: Simplify right side
    1,348.22x = 2,669,947.35
  5. Step 5: Solve for x
    x = 2,669,947.35/1,348.22
  6. Step 6: Final answer
    x = 1,980.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.