Home / 2,911.02-4,015.92-1,731.84

Finding the Fourth Proportional to 2,911.02, 4,015.92 and 1,731.84

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Solution

The fourth proportional to 2,911.02, 4,015.92 and 1,731.84 is: 2,389.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,911.02 : 4,015.92 = 1,731.84 : x
  2. Step 2: Convert to fraction form
    2,911.02/4,015.92 = 1,731.84/x
  3. Step 3: Cross multiply
    2,911.02x = 4,015.92 × 1,731.84
  4. Step 4: Simplify right side
    2,911.02x = 6,954,930.89
  5. Step 5: Solve for x
    x = 6,954,930.89/2,911.02
  6. Step 6: Final answer
    x = 2,389.17

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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.