Home / 3,165.11-4,748.69-1,521.79

Finding the Fourth Proportional to 3,165.11, 4,748.69 and 1,521.79

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Solution

The fourth proportional to 3,165.11, 4,748.69 and 1,521.79 is: 2,283.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,165.11 : 4,748.69 = 1,521.79 : x
  2. Step 2: Convert to fraction form
    3,165.11/4,748.69 = 1,521.79/x
  3. Step 3: Cross multiply
    3,165.11x = 4,748.69 × 1,521.79
  4. Step 4: Simplify right side
    3,165.11x = 7,226,485.21
  5. Step 5: Solve for x
    x = 7,226,485.21/3,165.11
  6. Step 6: Final answer
    x = 2,283.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.