Home / 4,378.12-6,042.52-2,490.54

Finding the Fourth Proportional to 4,378.12, 6,042.52 and 2,490.54

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Solution

The fourth proportional to 4,378.12, 6,042.52 and 2,490.54 is: 3,437.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,378.12 : 6,042.52 = 2,490.54 : x
  2. Step 2: Convert to fraction form
    4,378.12/6,042.52 = 2,490.54/x
  3. Step 3: Cross multiply
    4,378.12x = 6,042.52 × 2,490.54
  4. Step 4: Simplify right side
    4,378.12x = 15,049,137.76
  5. Step 5: Solve for x
    x = 15,049,137.76/4,378.12
  6. Step 6: Final answer
    x = 3,437.35

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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.