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Finding the Fourth Proportional to 1,868.59, 2,798.10 and 1,559.68

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Solution

The fourth proportional to 1,868.59, 2,798.10 and 1,559.68 is: 2,335.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,868.59 : 2,798.10 = 1,559.68 : x
  2. Step 2: Convert to fraction form
    1,868.59/2,798.10 = 1,559.68/x
  3. Step 3: Cross multiply
    1,868.59x = 2,798.10 × 1,559.68
  4. Step 4: Simplify right side
    1,868.59x = 4,364,126.62
  5. Step 5: Solve for x
    x = 4,364,126.62/1,868.59
  6. Step 6: Final answer
    x = 2,335.52

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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.