Home / 1,515.18-2,259.23-1,512.22

Finding the Fourth Proportional to 1,515.18, 2,259.23 and 1,512.22

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Solution

The fourth proportional to 1,515.18, 2,259.23 and 1,512.22 is: 2,254.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,515.18 : 2,259.23 = 1,512.22 : x
  2. Step 2: Convert to fraction form
    1,515.18/2,259.23 = 1,512.22/x
  3. Step 3: Cross multiply
    1,515.18x = 2,259.23 × 1,512.22
  4. Step 4: Simplify right side
    1,515.18x = 3,416,452.79
  5. Step 5: Solve for x
    x = 3,416,452.79/1,515.18
  6. Step 6: Final answer
    x = 2,254.82

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1.5x scale

Why These Related Problems?

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