Home / 1,752.30-2,624.40-1,339.20

Finding the Fourth Proportional to 1,752.30, 2,624.40 and 1,339.20

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Solution

The fourth proportional to 1,752.30, 2,624.40 and 1,339.20 is: 2,005.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,752.30 : 2,624.40 = 1,339.20 : x
  2. Step 2: Convert to fraction form
    1,752.30/2,624.40 = 1,339.20/x
  3. Step 3: Cross multiply
    1,752.30x = 2,624.40 × 1,339.20
  4. Step 4: Simplify right side
    1,752.30x = 3,514,596.48
  5. Step 5: Solve for x
    x = 3,514,596.48/1,752.30
  6. Step 6: Final answer
    x = 2,005.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.