Home / 1,898.68-2,621.82-1,402.18

Finding the Fourth Proportional to 1,898.68, 2,621.82 and 1,402.18

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Solution

The fourth proportional to 1,898.68, 2,621.82 and 1,402.18 is: 1,936.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,898.68 : 2,621.82 = 1,402.18 : x
  2. Step 2: Convert to fraction form
    1,898.68/2,621.82 = 1,402.18/x
  3. Step 3: Cross multiply
    1,898.68x = 2,621.82 × 1,402.18
  4. Step 4: Simplify right side
    1,898.68x = 3,676,263.57
  5. Step 5: Solve for x
    x = 3,676,263.57/1,898.68
  6. Step 6: Final answer
    x = 1,936.22

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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.