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Finding the Fourth Proportional to 1,512.88, 2,269.15 and 525.51

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Solution

The fourth proportional to 1,512.88, 2,269.15 and 525.51 is: 788.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,512.88 : 2,269.15 = 525.51 : x
  2. Step 2: Convert to fraction form
    1,512.88/2,269.15 = 525.51/x
  3. Step 3: Cross multiply
    1,512.88x = 2,269.15 × 525.51
  4. Step 4: Simplify right side
    1,512.88x = 1,192,459.70
  5. Step 5: Solve for x
    x = 1,192,459.70/1,512.88
  6. Step 6: Final answer
    x = 788.21

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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.