Home / 1,206.41-1,663.74-1,020.29

Finding the Fourth Proportional to 1,206.41, 1,663.74 and 1,020.29

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Solution

The fourth proportional to 1,206.41, 1,663.74 and 1,020.29 is: 1,407.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,206.41 : 1,663.74 = 1,020.29 : x
  2. Step 2: Convert to fraction form
    1,206.41/1,663.74 = 1,020.29/x
  3. Step 3: Cross multiply
    1,206.41x = 1,663.74 × 1,020.29
  4. Step 4: Simplify right side
    1,206.41x = 1,697,488.97
  5. Step 5: Solve for x
    x = 1,697,488.97/1,206.41
  6. Step 6: Final answer
    x = 1,407.06

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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.