Home / 1,352.90-1,864.96-1,057.65

Finding the Fourth Proportional to 1,352.90, 1,864.96 and 1,057.65

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Solution

The fourth proportional to 1,352.90, 1,864.96 and 1,057.65 is: 1,457.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,352.90 : 1,864.96 = 1,057.65 : x
  2. Step 2: Convert to fraction form
    1,352.90/1,864.96 = 1,057.65/x
  3. Step 3: Cross multiply
    1,352.90x = 1,864.96 × 1,057.65
  4. Step 4: Simplify right side
    1,352.90x = 1,972,469.66
  5. Step 5: Solve for x
    x = 1,972,469.66/1,352.90
  6. Step 6: Final answer
    x = 1,457.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.