Home / 1,491.59-2,060.40-1,121.37

Finding the Fourth Proportional to 1,491.59, 2,060.40 and 1,121.37

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Solution

The fourth proportional to 1,491.59, 2,060.40 and 1,121.37 is: 1,549.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,491.59 : 2,060.40 = 1,121.37 : x
  2. Step 2: Convert to fraction form
    1,491.59/2,060.40 = 1,121.37/x
  3. Step 3: Cross multiply
    1,491.59x = 2,060.40 × 1,121.37
  4. Step 4: Simplify right side
    1,491.59x = 2,310,470.75
  5. Step 5: Solve for x
    x = 2,310,470.75/1,491.59
  6. Step 6: Final answer
    x = 1,549.00

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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.