Home / 7,480.02-11,220.05-2,799.84

Finding the Fourth Proportional to 7,480.02, 11,220.05 and 2,799.84

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Solution

The fourth proportional to 7,480.02, 11,220.05 and 2,799.84 is: 4,199.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,480.02 : 11,220.05 = 2,799.84 : x
  2. Step 2: Convert to fraction form
    7,480.02/11,220.05 = 2,799.84/x
  3. Step 3: Cross multiply
    7,480.02x = 11,220.05 × 2,799.84
  4. Step 4: Simplify right side
    7,480.02x = 31,414,330.79
  5. Step 5: Solve for x
    x = 31,414,330.79/7,480.02
  6. Step 6: Final answer
    x = 4,199.77

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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.