Home / 2,223.42-3,334.02-836.40

Finding the Fourth Proportional to 2,223.42, 3,334.02 and 836.40

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Solution

The fourth proportional to 2,223.42, 3,334.02 and 836.40 is: 1,254.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,223.42 : 3,334.02 = 836.40 : x
  2. Step 2: Convert to fraction form
    2,223.42/3,334.02 = 836.40/x
  3. Step 3: Cross multiply
    2,223.42x = 3,334.02 × 836.40
  4. Step 4: Simplify right side
    2,223.42x = 2,788,574.33
  5. Step 5: Solve for x
    x = 2,788,574.33/2,223.42
  6. Step 6: Final answer
    x = 1,254.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.