Home / 2,490.75-3,437.24-1,443.02

Finding the Fourth Proportional to 2,490.75, 3,437.24 and 1,443.02

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Solution

The fourth proportional to 2,490.75, 3,437.24 and 1,443.02 is: 1,991.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,490.75 : 3,437.24 = 1,443.02 : x
  2. Step 2: Convert to fraction form
    2,490.75/3,437.24 = 1,443.02/x
  3. Step 3: Cross multiply
    2,490.75x = 3,437.24 × 1,443.02
  4. Step 4: Simplify right side
    2,490.75x = 4,959,981.66
  5. Step 5: Solve for x
    x = 4,959,981.66/2,490.75
  6. Step 6: Final answer
    x = 1,991.36

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Find fourth proportional to 1,245.38, 1,718.62 and 721.51
Half scale
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Double scale
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1.5x scale

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.