Home / 2,910.20-4,016.19-1,731.45

Finding the Fourth Proportional to 2,910.20, 4,016.19 and 1,731.45

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Solution

The fourth proportional to 2,910.20, 4,016.19 and 1,731.45 is: 2,389.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,910.20 : 4,016.19 = 1,731.45 : x
  2. Step 2: Convert to fraction form
    2,910.20/4,016.19 = 1,731.45/x
  3. Step 3: Cross multiply
    2,910.20x = 4,016.19 × 1,731.45
  4. Step 4: Simplify right side
    2,910.20x = 6,953,812.09
  5. Step 5: Solve for x
    x = 6,953,812.09/2,910.20
  6. Step 6: Final answer
    x = 2,389.46

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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.