Home / 1,491.40-2,237.10-1,334.80

Finding the Fourth Proportional to 1,491.40, 2,237.10 and 1,334.80

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Solution

The fourth proportional to 1,491.40, 2,237.10 and 1,334.80 is: 2,002.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,491.40 : 2,237.10 = 1,334.80 : x
  2. Step 2: Convert to fraction form
    1,491.40/2,237.10 = 1,334.80/x
  3. Step 3: Cross multiply
    1,491.40x = 2,237.10 × 1,334.80
  4. Step 4: Simplify right side
    1,491.40x = 2,986,081.08
  5. Step 5: Solve for x
    x = 2,986,081.08/1,491.40
  6. Step 6: Final answer
    x = 2,002.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.