Home / 4,909.82-6,774.69-2,921.01

Finding the Fourth Proportional to 4,909.82, 6,774.69 and 2,921.01

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Solution

The fourth proportional to 4,909.82, 6,774.69 and 2,921.01 is: 4,030.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,909.82 : 6,774.69 = 2,921.01 : x
  2. Step 2: Convert to fraction form
    4,909.82/6,774.69 = 2,921.01/x
  3. Step 3: Cross multiply
    4,909.82x = 6,774.69 × 2,921.01
  4. Step 4: Simplify right side
    4,909.82x = 19,788,944.46
  5. Step 5: Solve for x
    x = 19,788,944.46/4,909.82
  6. Step 6: Final answer
    x = 4,030.49

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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.