Home / 4,718.54-7,077.81-2,118.44

Finding the Fourth Proportional to 4,718.54, 7,077.81 and 2,118.44

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Solution

The fourth proportional to 4,718.54, 7,077.81 and 2,118.44 is: 3,177.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,718.54 : 7,077.81 = 2,118.44 : x
  2. Step 2: Convert to fraction form
    4,718.54/7,077.81 = 2,118.44/x
  3. Step 3: Cross multiply
    4,718.54x = 7,077.81 × 2,118.44
  4. Step 4: Simplify right side
    4,718.54x = 14,993,915.82
  5. Step 5: Solve for x
    x = 14,993,915.82/4,718.54
  6. Step 6: Final answer
    x = 3,177.66

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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.