Home / 1,802.42-2,486.67-1,212.02

Finding the Fourth Proportional to 1,802.42, 2,486.67 and 1,212.02

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Solution

The fourth proportional to 1,802.42, 2,486.67 and 1,212.02 is: 1,672.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,802.42 : 2,486.67 = 1,212.02 : x
  2. Step 2: Convert to fraction form
    1,802.42/2,486.67 = 1,212.02/x
  3. Step 3: Cross multiply
    1,802.42x = 2,486.67 × 1,212.02
  4. Step 4: Simplify right side
    1,802.42x = 3,013,893.77
  5. Step 5: Solve for x
    x = 3,013,893.77/1,802.42
  6. Step 6: Final answer
    x = 1,672.14

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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.