Home / 3,137.19-4,705.11-1,288.23

Finding the Fourth Proportional to 3,137.19, 4,705.11 and 1,288.23

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Solution

The fourth proportional to 3,137.19, 4,705.11 and 1,288.23 is: 1,932.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,137.19 : 4,705.11 = 1,288.23 : x
  2. Step 2: Convert to fraction form
    3,137.19/4,705.11 = 1,288.23/x
  3. Step 3: Cross multiply
    3,137.19x = 4,705.11 × 1,288.23
  4. Step 4: Simplify right side
    3,137.19x = 6,061,263.86
  5. Step 5: Solve for x
    x = 6,061,263.86/3,137.19
  6. Step 6: Final answer
    x = 1,932.07

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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.