Home / 3,126.44-4,688.51-934.42

Finding the Fourth Proportional to 3,126.44, 4,688.51 and 934.42

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Solution

The fourth proportional to 3,126.44, 4,688.51 and 934.42 is: 1,401.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,126.44 : 4,688.51 = 934.42 : x
  2. Step 2: Convert to fraction form
    3,126.44/4,688.51 = 934.42/x
  3. Step 3: Cross multiply
    3,126.44x = 4,688.51 × 934.42
  4. Step 4: Simplify right side
    3,126.44x = 4,381,037.51
  5. Step 5: Solve for x
    x = 4,381,037.51/3,126.44
  6. Step 6: Final answer
    x = 1,401.29

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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.