Home / 2,853.90-4,257.41-2,655.05

Finding the Fourth Proportional to 2,853.90, 4,257.41 and 2,655.05

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Solution

The fourth proportional to 2,853.90, 4,257.41 and 2,655.05 is: 3,960.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,853.90 : 4,257.41 = 2,655.05 : x
  2. Step 2: Convert to fraction form
    2,853.90/4,257.41 = 2,655.05/x
  3. Step 3: Cross multiply
    2,853.90x = 4,257.41 × 2,655.05
  4. Step 4: Simplify right side
    2,853.90x = 11,303,601.86
  5. Step 5: Solve for x
    x = 11,303,601.86/2,853.90
  6. Step 6: Final answer
    x = 3,960.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.