Home / 2,802.30-4,204.80-2,143.95

Finding the Fourth Proportional to 2,802.30, 4,204.80 and 2,143.95

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Solution

The fourth proportional to 2,802.30, 4,204.80 and 2,143.95 is: 3,216.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,802.30 : 4,204.80 = 2,143.95 : x
  2. Step 2: Convert to fraction form
    2,802.30/4,204.80 = 2,143.95/x
  3. Step 3: Cross multiply
    2,802.30x = 4,204.80 × 2,143.95
  4. Step 4: Simplify right side
    2,802.30x = 9,014,880.96
  5. Step 5: Solve for x
    x = 9,014,880.96/2,802.30
  6. Step 6: Final answer
    x = 3,216.96

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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.