Home / 2,902.28-4,003.56-1,722.51

Finding the Fourth Proportional to 2,902.28, 4,003.56 and 1,722.51

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Solution

The fourth proportional to 2,902.28, 4,003.56 and 1,722.51 is: 2,376.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,902.28 : 4,003.56 = 1,722.51 : x
  2. Step 2: Convert to fraction form
    2,902.28/4,003.56 = 1,722.51/x
  3. Step 3: Cross multiply
    2,902.28x = 4,003.56 × 1,722.51
  4. Step 4: Simplify right side
    2,902.28x = 6,896,172.14
  5. Step 5: Solve for x
    x = 6,896,172.14/2,902.28
  6. Step 6: Final answer
    x = 2,376.13

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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.