Home / 2,166.04-2,988.66-1,381.24

Finding the Fourth Proportional to 2,166.04, 2,988.66 and 1,381.24

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Solution

The fourth proportional to 2,166.04, 2,988.66 and 1,381.24 is: 1,905.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,166.04 : 2,988.66 = 1,381.24 : x
  2. Step 2: Convert to fraction form
    2,166.04/2,988.66 = 1,381.24/x
  3. Step 3: Cross multiply
    2,166.04x = 2,988.66 × 1,381.24
  4. Step 4: Simplify right side
    2,166.04x = 4,128,056.74
  5. Step 5: Solve for x
    x = 4,128,056.74/2,166.04
  6. Step 6: Final answer
    x = 1,905.81

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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.