Home / 2,778.28-3,835.53-2,210.00

Finding the Fourth Proportional to 2,778.28, 3,835.53 and 2,210.00

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Solution

The fourth proportional to 2,778.28, 3,835.53 and 2,210.00 is: 3,050.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,778.28 : 3,835.53 = 2,210.00 : x
  2. Step 2: Convert to fraction form
    2,778.28/3,835.53 = 2,210.00/x
  3. Step 3: Cross multiply
    2,778.28x = 3,835.53 × 2,210.00
  4. Step 4: Simplify right side
    2,778.28x = 8,476,502.12
  5. Step 5: Solve for x
    x = 8,476,502.12/2,778.28
  6. Step 6: Final answer
    x = 3,050.99

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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.