Home / 1,677.18-2,508.21-1,281.98

Finding the Fourth Proportional to 1,677.18, 2,508.21 and 1,281.98

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Solution

The fourth proportional to 1,677.18, 2,508.21 and 1,281.98 is: 1,917.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,677.18 : 2,508.21 = 1,281.98 : x
  2. Step 2: Convert to fraction form
    1,677.18/2,508.21 = 1,281.98/x
  3. Step 3: Cross multiply
    1,677.18x = 2,508.21 × 1,281.98
  4. Step 4: Simplify right side
    1,677.18x = 3,215,462.51
  5. Step 5: Solve for x
    x = 3,215,462.51/1,677.18
  6. Step 6: Final answer
    x = 1,917.18

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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.