Home / 2,299.34-3,170.13-1,670.78

Finding the Fourth Proportional to 2,299.34, 3,170.13 and 1,670.78

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Solution

The fourth proportional to 2,299.34, 3,170.13 and 1,670.78 is: 2,303.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,299.34 : 3,170.13 = 1,670.78 : x
  2. Step 2: Convert to fraction form
    2,299.34/3,170.13 = 1,670.78/x
  3. Step 3: Cross multiply
    2,299.34x = 3,170.13 × 1,670.78
  4. Step 4: Simplify right side
    2,299.34x = 5,296,589.80
  5. Step 5: Solve for x
    x = 5,296,589.80/2,299.34
  6. Step 6: Final answer
    x = 2,303.53

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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.