Home / 2,223.02-3,335.08-990.84

Finding the Fourth Proportional to 2,223.02, 3,335.08 and 990.84

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Solution

The fourth proportional to 2,223.02, 3,335.08 and 990.84 is: 1,486.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,223.02 : 3,335.08 = 990.84 : x
  2. Step 2: Convert to fraction form
    2,223.02/3,335.08 = 990.84/x
  3. Step 3: Cross multiply
    2,223.02x = 3,335.08 × 990.84
  4. Step 4: Simplify right side
    2,223.02x = 3,304,530.67
  5. Step 5: Solve for x
    x = 3,304,530.67/2,223.02
  6. Step 6: Final answer
    x = 1,486.51

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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.