Home / 2,207.02-3,309.74-890.38

Finding the Fourth Proportional to 2,207.02, 3,309.74 and 890.38

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Solution

The fourth proportional to 2,207.02, 3,309.74 and 890.38 is: 1,335.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,207.02 : 3,309.74 = 890.38 : x
  2. Step 2: Convert to fraction form
    2,207.02/3,309.74 = 890.38/x
  3. Step 3: Cross multiply
    2,207.02x = 3,309.74 × 890.38
  4. Step 4: Simplify right side
    2,207.02x = 2,946,926.30
  5. Step 5: Solve for x
    x = 2,946,926.30/2,207.02
  6. Step 6: Final answer
    x = 1,335.25

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1.5x scale

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.