Home / 1,536.09-2,119.30-872.70

Finding the Fourth Proportional to 1,536.09, 2,119.30 and 872.70

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Solution

The fourth proportional to 1,536.09, 2,119.30 and 872.70 is: 1,204.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,536.09 : 2,119.30 = 872.70 : x
  2. Step 2: Convert to fraction form
    1,536.09/2,119.30 = 872.70/x
  3. Step 3: Cross multiply
    1,536.09x = 2,119.30 × 872.70
  4. Step 4: Simplify right side
    1,536.09x = 1,849,510.93
  5. Step 5: Solve for x
    x = 1,849,510.93/1,536.09
  6. Step 6: Final answer
    x = 1,204.04

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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.