Home / 3,091.84-4,263-2,148.44

Finding the Fourth Proportional to 3,091.84, 4,263 and 2,148.44

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Solution

The fourth proportional to 3,091.84, 4,263 and 2,148.44 is: 2,962.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,091.84 : 4,263 = 2,148.44 : x
  2. Step 2: Convert to fraction form
    3,091.84/4,263 = 2,148.44/x
  3. Step 3: Cross multiply
    3,091.84x = 4,263 × 2,148.44
  4. Step 4: Simplify right side
    3,091.84x = 9,158,799.72
  5. Step 5: Solve for x
    x = 9,158,799.72/3,091.84
  6. Step 6: Final answer
    x = 2,962.25

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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.