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Finding the Fourth Proportional to 1,818.60, 2,726.28 and 997.32

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Solution

The fourth proportional to 1,818.60, 2,726.28 and 997.32 is: 1,495.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,818.60 : 2,726.28 = 997.32 : x
  2. Step 2: Convert to fraction form
    1,818.60/2,726.28 = 997.32/x
  3. Step 3: Cross multiply
    1,818.60x = 2,726.28 × 997.32
  4. Step 4: Simplify right side
    1,818.60x = 2,718,973.57
  5. Step 5: Solve for x
    x = 2,718,973.57/1,818.60
  6. Step 6: Final answer
    x = 1,495.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.