Home / 1,348.96-2,006.31-1,321.30

Finding the Fourth Proportional to 1,348.96, 2,006.31 and 1,321.30

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Solution

The fourth proportional to 1,348.96, 2,006.31 and 1,321.30 is: 1,965.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,348.96 : 2,006.31 = 1,321.30 : x
  2. Step 2: Convert to fraction form
    1,348.96/2,006.31 = 1,321.30/x
  3. Step 3: Cross multiply
    1,348.96x = 2,006.31 × 1,321.30
  4. Step 4: Simplify right side
    1,348.96x = 2,650,937.40
  5. Step 5: Solve for x
    x = 2,650,937.40/1,348.96
  6. Step 6: Final answer
    x = 1,965.17

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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.