Home / 1,861.13-2,568.40-1,064.53

Finding the Fourth Proportional to 1,861.13, 2,568.40 and 1,064.53

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Solution

The fourth proportional to 1,861.13, 2,568.40 and 1,064.53 is: 1,469.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,861.13 : 2,568.40 = 1,064.53 : x
  2. Step 2: Convert to fraction form
    1,861.13/2,568.40 = 1,064.53/x
  3. Step 3: Cross multiply
    1,861.13x = 2,568.40 × 1,064.53
  4. Step 4: Simplify right side
    1,861.13x = 2,734,141.03
  5. Step 5: Solve for x
    x = 2,734,141.03/1,861.13
  6. Step 6: Final answer
    x = 1,469.07

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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.