Home / 2,490.10-3,434.06-1,992.76

Finding the Fourth Proportional to 2,490.10, 3,434.06 and 1,992.76

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Solution

The fourth proportional to 2,490.10, 3,434.06 and 1,992.76 is: 2,748.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,490.10 : 3,434.06 = 1,992.76 : x
  2. Step 2: Convert to fraction form
    2,490.10/3,434.06 = 1,992.76/x
  3. Step 3: Cross multiply
    2,490.10x = 3,434.06 × 1,992.76
  4. Step 4: Simplify right side
    2,490.10x = 6,843,257.41
  5. Step 5: Solve for x
    x = 6,843,257.41/2,490.10
  6. Step 6: Final answer
    x = 2,748.19

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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.