Home / 4,869.75-6,721.47-2,775.09

Finding the Fourth Proportional to 4,869.75, 6,721.47 and 2,775.09

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Solution

The fourth proportional to 4,869.75, 6,721.47 and 2,775.09 is: 3,830.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,869.75 : 6,721.47 = 2,775.09 : x
  2. Step 2: Convert to fraction form
    4,869.75/6,721.47 = 2,775.09/x
  3. Step 3: Cross multiply
    4,869.75x = 6,721.47 × 2,775.09
  4. Step 4: Simplify right side
    4,869.75x = 18,652,684.18
  5. Step 5: Solve for x
    x = 18,652,684.18/4,869.75
  6. Step 6: Final answer
    x = 3,830.32

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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.