Home / 2,610.30-3,915.45-1,954.20

Finding the Fourth Proportional to 2,610.30, 3,915.45 and 1,954.20

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Solution

The fourth proportional to 2,610.30, 3,915.45 and 1,954.20 is: 2,931.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,610.30 : 3,915.45 = 1,954.20 : x
  2. Step 2: Convert to fraction form
    2,610.30/3,915.45 = 1,954.20/x
  3. Step 3: Cross multiply
    2,610.30x = 3,915.45 × 1,954.20
  4. Step 4: Simplify right side
    2,610.30x = 7,651,572.39
  5. Step 5: Solve for x
    x = 7,651,572.39/2,610.30
  6. Step 6: Final answer
    x = 2,931.30

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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.