Home / 1,568.70-2,350.89-1,240.11

Finding the Fourth Proportional to 1,568.70, 2,350.89 and 1,240.11

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Solution

The fourth proportional to 1,568.70, 2,350.89 and 1,240.11 is: 1,858.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,568.70 : 2,350.89 = 1,240.11 : x
  2. Step 2: Convert to fraction form
    1,568.70/2,350.89 = 1,240.11/x
  3. Step 3: Cross multiply
    1,568.70x = 2,350.89 × 1,240.11
  4. Step 4: Simplify right side
    1,568.70x = 2,915,362.20
  5. Step 5: Solve for x
    x = 2,915,362.20/1,568.70
  6. Step 6: Final answer
    x = 1,858.46

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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.