Home / 1,412.83-2,117.53-1,246.76

Finding the Fourth Proportional to 1,412.83, 2,117.53 and 1,246.76

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Solution

The fourth proportional to 1,412.83, 2,117.53 and 1,246.76 is: 1,868.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,412.83 : 2,117.53 = 1,246.76 : x
  2. Step 2: Convert to fraction form
    1,412.83/2,117.53 = 1,246.76/x
  3. Step 3: Cross multiply
    1,412.83x = 2,117.53 × 1,246.76
  4. Step 4: Simplify right side
    1,412.83x = 2,640,034.88
  5. Step 5: Solve for x
    x = 2,640,034.88/1,412.83
  6. Step 6: Final answer
    x = 1,868.62

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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.