Home / 2,666.16-3,999.23-934.79

Finding the Fourth Proportional to 2,666.16, 3,999.23 and 934.79

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Solution

The fourth proportional to 2,666.16, 3,999.23 and 934.79 is: 1,402.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,666.16 : 3,999.23 = 934.79 : x
  2. Step 2: Convert to fraction form
    2,666.16/3,999.23 = 934.79/x
  3. Step 3: Cross multiply
    2,666.16x = 3,999.23 × 934.79
  4. Step 4: Simplify right side
    2,666.16x = 3,738,422.55
  5. Step 5: Solve for x
    x = 3,738,422.55/2,666.16
  6. Step 6: Final answer
    x = 1,402.17

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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.