Home / 1,703.64-2,351.85-1,143.90

Finding the Fourth Proportional to 1,703.64, 2,351.85 and 1,143.90

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Solution

The fourth proportional to 1,703.64, 2,351.85 and 1,143.90 is: 1,579.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,703.64 : 2,351.85 = 1,143.90 : x
  2. Step 2: Convert to fraction form
    1,703.64/2,351.85 = 1,143.90/x
  3. Step 3: Cross multiply
    1,703.64x = 2,351.85 × 1,143.90
  4. Step 4: Simplify right side
    1,703.64x = 2,690,281.22
  5. Step 5: Solve for x
    x = 2,690,281.22/1,703.64
  6. Step 6: Final answer
    x = 1,579.14

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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.