Home / 2,299.42-3,171.76-1,915.16

Finding the Fourth Proportional to 2,299.42, 3,171.76 and 1,915.16

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Solution

The fourth proportional to 2,299.42, 3,171.76 and 1,915.16 is: 2,641.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,299.42 : 3,171.76 = 1,915.16 : x
  2. Step 2: Convert to fraction form
    2,299.42/3,171.76 = 1,915.16/x
  3. Step 3: Cross multiply
    2,299.42x = 3,171.76 × 1,915.16
  4. Step 4: Simplify right side
    2,299.42x = 6,074,427.88
  5. Step 5: Solve for x
    x = 6,074,427.88/2,299.42
  6. Step 6: Final answer
    x = 2,641.72

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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.