Home / 1,383.89-2,062.46-1,303.90

Finding the Fourth Proportional to 1,383.89, 2,062.46 and 1,303.90

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Solution

The fourth proportional to 1,383.89, 2,062.46 and 1,303.90 is: 1,943.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383.89 : 2,062.46 = 1,303.90 : x
  2. Step 2: Convert to fraction form
    1,383.89/2,062.46 = 1,303.90/x
  3. Step 3: Cross multiply
    1,383.89x = 2,062.46 × 1,303.90
  4. Step 4: Simplify right side
    1,383.89x = 2,689,239.70
  5. Step 5: Solve for x
    x = 2,689,239.70/1,383.89
  6. Step 6: Final answer
    x = 1,943.25

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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.