Home / 1,490.16-2,231.36-1,246.08

Finding the Fourth Proportional to 1,490.16, 2,231.36 and 1,246.08

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Solution

The fourth proportional to 1,490.16, 2,231.36 and 1,246.08 is: 1,865.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,490.16 : 2,231.36 = 1,246.08 : x
  2. Step 2: Convert to fraction form
    1,490.16/2,231.36 = 1,246.08/x
  3. Step 3: Cross multiply
    1,490.16x = 2,231.36 × 1,246.08
  4. Step 4: Simplify right side
    1,490.16x = 2,780,453.07
  5. Step 5: Solve for x
    x = 2,780,453.07/1,490.16
  6. Step 6: Final answer
    x = 1,865.88

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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.