Home / 2,184.21-2,992.55-2,156.90

Finding the Fourth Proportional to 2,184.21, 2,992.55 and 2,156.90

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Solution

The fourth proportional to 2,184.21, 2,992.55 and 2,156.90 is: 2,955.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,184.21 : 2,992.55 = 2,156.90 : x
  2. Step 2: Convert to fraction form
    2,184.21/2,992.55 = 2,156.90/x
  3. Step 3: Cross multiply
    2,184.21x = 2,992.55 × 2,156.90
  4. Step 4: Simplify right side
    2,184.21x = 6,454,605.35
  5. Step 5: Solve for x
    x = 6,454,605.35/2,184.21
  6. Step 6: Final answer
    x = 2,955.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.