Home / 1,491.12-2,232.90-1,247.04

Finding the Fourth Proportional to 1,491.12, 2,232.90 and 1,247.04

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Solution

The fourth proportional to 1,491.12, 2,232.90 and 1,247.04 is: 1,867.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,491.12 : 2,232.90 = 1,247.04 : x
  2. Step 2: Convert to fraction form
    1,491.12/2,232.90 = 1,247.04/x
  3. Step 3: Cross multiply
    1,491.12x = 2,232.90 × 1,247.04
  4. Step 4: Simplify right side
    1,491.12x = 2,784,515.62
  5. Step 5: Solve for x
    x = 2,784,515.62/1,491.12
  6. Step 6: Final answer
    x = 1,867.40

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1.5x scale

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.