Home / 1,703.20-2,351.72-1,479.90

Finding the Fourth Proportional to 1,703.20, 2,351.72 and 1,479.90

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Solution

The fourth proportional to 1,703.20, 2,351.72 and 1,479.90 is: 2,043.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,703.20 : 2,351.72 = 1,479.90 : x
  2. Step 2: Convert to fraction form
    1,703.20/2,351.72 = 1,479.90/x
  3. Step 3: Cross multiply
    1,703.20x = 2,351.72 × 1,479.90
  4. Step 4: Simplify right side
    1,703.20x = 3,480,310.43
  5. Step 5: Solve for x
    x = 3,480,310.43/1,703.20
  6. Step 6: Final answer
    x = 2,043.40

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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.