Home / 2,910.46-4,015.81-1,731.30

Finding the Fourth Proportional to 2,910.46, 4,015.81 and 1,731.30

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Solution

The fourth proportional to 2,910.46, 4,015.81 and 1,731.30 is: 2,388.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,910.46 : 4,015.81 = 1,731.30 : x
  2. Step 2: Convert to fraction form
    2,910.46/4,015.81 = 1,731.30/x
  3. Step 3: Cross multiply
    2,910.46x = 4,015.81 × 1,731.30
  4. Step 4: Simplify right side
    2,910.46x = 6,952,543.12
  5. Step 5: Solve for x
    x = 6,952,543.12/2,910.46
  6. Step 6: Final answer
    x = 2,388.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.