Home / 1,515.24-2,260.98-1,422.36

Finding the Fourth Proportional to 1,515.24, 2,260.98 and 1,422.36

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Solution

The fourth proportional to 1,515.24, 2,260.98 and 1,422.36 is: 2,122.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,515.24 : 2,260.98 = 1,422.36 : x
  2. Step 2: Convert to fraction form
    1,515.24/2,260.98 = 1,422.36/x
  3. Step 3: Cross multiply
    1,515.24x = 2,260.98 × 1,422.36
  4. Step 4: Simplify right side
    1,515.24x = 3,215,927.51
  5. Step 5: Solve for x
    x = 3,215,927.51/1,515.24
  6. Step 6: Final answer
    x = 2,122.39

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Half scale
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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.