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Finding the Fourth Proportional to 1,708.58, 2,559.63 and 1,013.78

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Solution

The fourth proportional to 1,708.58, 2,559.63 and 1,013.78 is: 1,518.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,708.58 : 2,559.63 = 1,013.78 : x
  2. Step 2: Convert to fraction form
    1,708.58/2,559.63 = 1,013.78/x
  3. Step 3: Cross multiply
    1,708.58x = 2,559.63 × 1,013.78
  4. Step 4: Simplify right side
    1,708.58x = 2,594,883.83
  5. Step 5: Solve for x
    x = 2,594,883.83/1,708.58
  6. Step 6: Final answer
    x = 1,518.74

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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.