Home / 5,691.45-8,537.75-1,531.49

Finding the Fourth Proportional to 5,691.45, 8,537.75 and 1,531.49

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Solution

The fourth proportional to 5,691.45, 8,537.75 and 1,531.49 is: 2,297.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,691.45 : 8,537.75 = 1,531.49 : x
  2. Step 2: Convert to fraction form
    5,691.45/8,537.75 = 1,531.49/x
  3. Step 3: Cross multiply
    5,691.45x = 8,537.75 × 1,531.49
  4. Step 4: Simplify right side
    5,691.45x = 13,075,490.78
  5. Step 5: Solve for x
    x = 13,075,490.78/5,691.45
  6. Step 6: Final answer
    x = 2,297.39

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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.