Home / 1,488.48-2,052.57-1,279.36

Finding the Fourth Proportional to 1,488.48, 2,052.57 and 1,279.36

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Solution

The fourth proportional to 1,488.48, 2,052.57 and 1,279.36 is: 1,764.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,488.48 : 2,052.57 = 1,279.36 : x
  2. Step 2: Convert to fraction form
    1,488.48/2,052.57 = 1,279.36/x
  3. Step 3: Cross multiply
    1,488.48x = 2,052.57 × 1,279.36
  4. Step 4: Simplify right side
    1,488.48x = 2,625,983.32
  5. Step 5: Solve for x
    x = 2,625,983.32/1,488.48
  6. Step 6: Final answer
    x = 1,764.21

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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.