Home / 2,770.30-3,827.87-2,215.35

Finding the Fourth Proportional to 2,770.30, 3,827.87 and 2,215.35

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Solution

The fourth proportional to 2,770.30, 3,827.87 and 2,215.35 is: 3,061.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,770.30 : 3,827.87 = 2,215.35 : x
  2. Step 2: Convert to fraction form
    2,770.30/3,827.87 = 2,215.35/x
  3. Step 3: Cross multiply
    2,770.30x = 3,827.87 × 2,215.35
  4. Step 4: Simplify right side
    2,770.30x = 8,480,071.80
  5. Step 5: Solve for x
    x = 8,480,071.80/2,770.30
  6. Step 6: Final answer
    x = 3,061.07

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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.