Home / 1,531.89-2,297.80-1,015.15

Finding the Fourth Proportional to 1,531.89, 2,297.80 and 1,015.15

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Solution

The fourth proportional to 1,531.89, 2,297.80 and 1,015.15 is: 1,522.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,531.89 : 2,297.80 = 1,015.15 : x
  2. Step 2: Convert to fraction form
    1,531.89/2,297.80 = 1,015.15/x
  3. Step 3: Cross multiply
    1,531.89x = 2,297.80 × 1,015.15
  4. Step 4: Simplify right side
    1,531.89x = 2,332,611.67
  5. Step 5: Solve for x
    x = 2,332,611.67/1,531.89
  6. Step 6: Final answer
    x = 1,522.70

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1.5x scale

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.