Home / 1,246.08-1,718.34-1,069.68

Finding the Fourth Proportional to 1,246.08, 1,718.34 and 1,069.68

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Solution

The fourth proportional to 1,246.08, 1,718.34 and 1,069.68 is: 1,475.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,246.08 : 1,718.34 = 1,069.68 : x
  2. Step 2: Convert to fraction form
    1,246.08/1,718.34 = 1,069.68/x
  3. Step 3: Cross multiply
    1,246.08x = 1,718.34 × 1,069.68
  4. Step 4: Simplify right side
    1,246.08x = 1,838,073.93
  5. Step 5: Solve for x
    x = 1,838,073.93/1,246.08
  6. Step 6: Final answer
    x = 1,475.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.