Home / 2,071.20-3,106.85-610.40

Finding the Fourth Proportional to 2,071.20, 3,106.85 and 610.40

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Solution

The fourth proportional to 2,071.20, 3,106.85 and 610.40 is: 915.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,071.20 : 3,106.85 = 610.40 : x
  2. Step 2: Convert to fraction form
    2,071.20/3,106.85 = 610.40/x
  3. Step 3: Cross multiply
    2,071.20x = 3,106.85 × 610.40
  4. Step 4: Simplify right side
    2,071.20x = 1,896,421.24
  5. Step 5: Solve for x
    x = 1,896,421.24/2,071.20
  6. Step 6: Final answer
    x = 915.61

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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.