Home / 1,686.50-2,531.06-1,170.13

Finding the Fourth Proportional to 1,686.50, 2,531.06 and 1,170.13

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Solution

The fourth proportional to 1,686.50, 2,531.06 and 1,170.13 is: 1,756.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,686.50 : 2,531.06 = 1,170.13 : x
  2. Step 2: Convert to fraction form
    1,686.50/2,531.06 = 1,170.13/x
  3. Step 3: Cross multiply
    1,686.50x = 2,531.06 × 1,170.13
  4. Step 4: Simplify right side
    1,686.50x = 2,961,650.73
  5. Step 5: Solve for x
    x = 2,961,650.73/1,686.50
  6. Step 6: Final answer
    x = 1,756.09

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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.