Home / 1,488.44-2,220.94-1,313.48

Finding the Fourth Proportional to 1,488.44, 2,220.94 and 1,313.48

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Solution

The fourth proportional to 1,488.44, 2,220.94 and 1,313.48 is: 1,959.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,488.44 : 2,220.94 = 1,313.48 : x
  2. Step 2: Convert to fraction form
    1,488.44/2,220.94 = 1,313.48/x
  3. Step 3: Cross multiply
    1,488.44x = 2,220.94 × 1,313.48
  4. Step 4: Simplify right side
    1,488.44x = 2,917,160.27
  5. Step 5: Solve for x
    x = 2,917,160.27/1,488.44
  6. Step 6: Final answer
    x = 1,959.88

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1.5x scale

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.