Home / 3,139.05-4,705.24-1,492.12

Finding the Fourth Proportional to 3,139.05, 4,705.24 and 1,492.12

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Solution

The fourth proportional to 3,139.05, 4,705.24 and 1,492.12 is: 2,236.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,139.05 : 4,705.24 = 1,492.12 : x
  2. Step 2: Convert to fraction form
    3,139.05/4,705.24 = 1,492.12/x
  3. Step 3: Cross multiply
    3,139.05x = 4,705.24 × 1,492.12
  4. Step 4: Simplify right side
    3,139.05x = 7,020,787.66
  5. Step 5: Solve for x
    x = 7,020,787.66/3,139.05
  6. Step 6: Final answer
    x = 2,236.59

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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.