Home / 1,515.72-2,261.76-1,352.28

Finding the Fourth Proportional to 1,515.72, 2,261.76 and 1,352.28

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Solution

The fourth proportional to 1,515.72, 2,261.76 and 1,352.28 is: 2,017.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,515.72 : 2,261.76 = 1,352.28 : x
  2. Step 2: Convert to fraction form
    1,515.72/2,261.76 = 1,352.28/x
  3. Step 3: Cross multiply
    1,515.72x = 2,261.76 × 1,352.28
  4. Step 4: Simplify right side
    1,515.72x = 3,058,532.81
  5. Step 5: Solve for x
    x = 3,058,532.81/1,515.72
  6. Step 6: Final answer
    x = 2,017.87

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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.