Home / 3,493.10-4,820.45-1,921.16

Finding the Fourth Proportional to 3,493.10, 4,820.45 and 1,921.16

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Solution

The fourth proportional to 3,493.10, 4,820.45 and 1,921.16 is: 2,651.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,493.10 : 4,820.45 = 1,921.16 : x
  2. Step 2: Convert to fraction form
    3,493.10/4,820.45 = 1,921.16/x
  3. Step 3: Cross multiply
    3,493.10x = 4,820.45 × 1,921.16
  4. Step 4: Simplify right side
    3,493.10x = 9,260,836.42
  5. Step 5: Solve for x
    x = 9,260,836.42/3,493.10
  6. Step 6: Final answer
    x = 2,651.18

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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.