Home / 1,246.18-1,719.43-1,047.76

Finding the Fourth Proportional to 1,246.18, 1,719.43 and 1,047.76

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Solution

The fourth proportional to 1,246.18, 1,719.43 and 1,047.76 is: 1,445.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,246.18 : 1,719.43 = 1,047.76 : x
  2. Step 2: Convert to fraction form
    1,246.18/1,719.43 = 1,047.76/x
  3. Step 3: Cross multiply
    1,246.18x = 1,719.43 × 1,047.76
  4. Step 4: Simplify right side
    1,246.18x = 1,801,549.98
  5. Step 5: Solve for x
    x = 1,801,549.98/1,246.18
  6. Step 6: Final answer
    x = 1,445.66

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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.