Home / 2,813.40-4,220.10-2,732.40

Finding the Fourth Proportional to 2,813.40, 4,220.10 and 2,732.40

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Solution

The fourth proportional to 2,813.40, 4,220.10 and 2,732.40 is: 4,098.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,813.40 : 4,220.10 = 2,732.40 : x
  2. Step 2: Convert to fraction form
    2,813.40/4,220.10 = 2,732.40/x
  3. Step 3: Cross multiply
    2,813.40x = 4,220.10 × 2,732.40
  4. Step 4: Simplify right side
    2,813.40x = 11,531,001.24
  5. Step 5: Solve for x
    x = 11,531,001.24/2,813.40
  6. Step 6: Final answer
    x = 4,098.60

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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.