Home / 2,802.35-4,206.26-2,138.02

Finding the Fourth Proportional to 2,802.35, 4,206.26 and 2,138.02

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Solution

The fourth proportional to 2,802.35, 4,206.26 and 2,138.02 is: 3,209.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,802.35 : 4,206.26 = 2,138.02 : x
  2. Step 2: Convert to fraction form
    2,802.35/4,206.26 = 2,138.02/x
  3. Step 3: Cross multiply
    2,802.35x = 4,206.26 × 2,138.02
  4. Step 4: Simplify right side
    2,802.35x = 8,993,062.83
  5. Step 5: Solve for x
    x = 8,993,062.83/2,802.35
  6. Step 6: Final answer
    x = 3,209.11

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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.