Home / 2,170.18-2,995.14-1,330.72

Finding the Fourth Proportional to 2,170.18, 2,995.14 and 1,330.72

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Solution

The fourth proportional to 2,170.18, 2,995.14 and 1,330.72 is: 1,836.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,170.18 : 2,995.14 = 1,330.72 : x
  2. Step 2: Convert to fraction form
    2,170.18/2,995.14 = 1,330.72/x
  3. Step 3: Cross multiply
    2,170.18x = 2,995.14 × 1,330.72
  4. Step 4: Simplify right side
    2,170.18x = 3,985,692.70
  5. Step 5: Solve for x
    x = 3,985,692.70/2,170.18
  6. Step 6: Final answer
    x = 1,836.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.