Home / 1,246.85-1,719.05-1,021.97

Finding the Fourth Proportional to 1,246.85, 1,719.05 and 1,021.97

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Solution

The fourth proportional to 1,246.85, 1,719.05 and 1,021.97 is: 1,409.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,246.85 : 1,719.05 = 1,021.97 : x
  2. Step 2: Convert to fraction form
    1,246.85/1,719.05 = 1,021.97/x
  3. Step 3: Cross multiply
    1,246.85x = 1,719.05 × 1,021.97
  4. Step 4: Simplify right side
    1,246.85x = 1,756,803.82
  5. Step 5: Solve for x
    x = 1,756,803.82/1,246.85
  6. Step 6: Final answer
    x = 1,409.00

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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.