Home / 1,490.81-2,236.62-1,060.70

Finding the Fourth Proportional to 1,490.81, 2,236.62 and 1,060.70

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Solution

The fourth proportional to 1,490.81, 2,236.62 and 1,060.70 is: 1,591.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,490.81 : 2,236.62 = 1,060.70 : x
  2. Step 2: Convert to fraction form
    1,490.81/2,236.62 = 1,060.70/x
  3. Step 3: Cross multiply
    1,490.81x = 2,236.62 × 1,060.70
  4. Step 4: Simplify right side
    1,490.81x = 2,372,382.83
  5. Step 5: Solve for x
    x = 2,372,382.83/1,490.81
  6. Step 6: Final answer
    x = 1,591.34

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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.