Home / 3,393.40-5,077.72-2,802.92

Finding the Fourth Proportional to 3,393.40, 5,077.72 and 2,802.92

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Solution

The fourth proportional to 3,393.40, 5,077.72 and 2,802.92 is: 4,194.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,393.40 : 5,077.72 = 2,802.92 : x
  2. Step 2: Convert to fraction form
    3,393.40/5,077.72 = 2,802.92/x
  3. Step 3: Cross multiply
    3,393.40x = 5,077.72 × 2,802.92
  4. Step 4: Simplify right side
    3,393.40x = 14,232,442.94
  5. Step 5: Solve for x
    x = 14,232,442.94/3,393.40
  6. Step 6: Final answer
    x = 4,194.15

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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.