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Finding the Fourth Proportional to 1,818.90, 2,714.99 and 1,758.06

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Solution

The fourth proportional to 1,818.90, 2,714.99 and 1,758.06 is: 2,624.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,818.90 : 2,714.99 = 1,758.06 : x
  2. Step 2: Convert to fraction form
    1,818.90/2,714.99 = 1,758.06/x
  3. Step 3: Cross multiply
    1,818.90x = 2,714.99 × 1,758.06
  4. Step 4: Simplify right side
    1,818.90x = 4,773,106.53
  5. Step 5: Solve for x
    x = 4,773,106.53/1,818.90
  6. Step 6: Final answer
    x = 2,624.17

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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.