Home / 1,820.28-2,717.18-1,685.04

Finding the Fourth Proportional to 1,820.28, 2,717.18 and 1,685.04

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Solution

The fourth proportional to 1,820.28, 2,717.18 and 1,685.04 is: 2,515.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,820.28 : 2,717.18 = 1,685.04 : x
  2. Step 2: Convert to fraction form
    1,820.28/2,717.18 = 1,685.04/x
  3. Step 3: Cross multiply
    1,820.28x = 2,717.18 × 1,685.04
  4. Step 4: Simplify right side
    1,820.28x = 4,578,548.56
  5. Step 5: Solve for x
    x = 4,578,548.56/1,820.28
  6. Step 6: Final answer
    x = 2,515.30

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.