Home / 5,366.38-7,405.40-2,976.45

Finding the Fourth Proportional to 5,366.38, 7,405.40 and 2,976.45

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Solution

The fourth proportional to 5,366.38, 7,405.40 and 2,976.45 is: 4,107.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,366.38 : 7,405.40 = 2,976.45 : x
  2. Step 2: Convert to fraction form
    5,366.38/7,405.40 = 2,976.45/x
  3. Step 3: Cross multiply
    5,366.38x = 7,405.40 × 2,976.45
  4. Step 4: Simplify right side
    5,366.38x = 22,041,787.95
  5. Step 5: Solve for x
    x = 22,041,787.95/5,366.38
  6. Step 6: Final answer
    x = 4,107.39

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1.5x scale

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.