Home / 3,670.84-5,065.23-2,178.82

Finding the Fourth Proportional to 3,670.84, 5,065.23 and 2,178.82

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Solution

The fourth proportional to 3,670.84, 5,065.23 and 2,178.82 is: 3,006.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,670.84 : 5,065.23 = 2,178.82 : x
  2. Step 2: Convert to fraction form
    3,670.84/5,065.23 = 2,178.82/x
  3. Step 3: Cross multiply
    3,670.84x = 5,065.23 × 2,178.82
  4. Step 4: Simplify right side
    3,670.84x = 11,036,224.43
  5. Step 5: Solve for x
    x = 11,036,224.43/3,670.84
  6. Step 6: Final answer
    x = 3,006.46

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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.