Home / 3,775.02-5,211.30-2,518.20

Finding the Fourth Proportional to 3,775.02, 5,211.30 and 2,518.20

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Solution

The fourth proportional to 3,775.02, 5,211.30 and 2,518.20 is: 3,476.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,775.02 : 5,211.30 = 2,518.20 : x
  2. Step 2: Convert to fraction form
    3,775.02/5,211.30 = 2,518.20/x
  3. Step 3: Cross multiply
    3,775.02x = 5,211.30 × 2,518.20
  4. Step 4: Simplify right side
    3,775.02x = 13,123,095.66
  5. Step 5: Solve for x
    x = 13,123,095.66/3,775.02
  6. Step 6: Final answer
    x = 3,476.30

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1.5x scale

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.