Home / 1,335.32-1,990.60-1,314.26

Finding the Fourth Proportional to 1,335.32, 1,990.60 and 1,314.26

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Solution

The fourth proportional to 1,335.32, 1,990.60 and 1,314.26 is: 1,959.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,335.32 : 1,990.60 = 1,314.26 : x
  2. Step 2: Convert to fraction form
    1,335.32/1,990.60 = 1,314.26/x
  3. Step 3: Cross multiply
    1,335.32x = 1,990.60 × 1,314.26
  4. Step 4: Simplify right side
    1,335.32x = 2,616,165.96
  5. Step 5: Solve for x
    x = 2,616,165.96/1,335.32
  6. Step 6: Final answer
    x = 1,959.21

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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.