Home / 3,145.42-4,330.02-2,398.06

Finding the Fourth Proportional to 3,145.42, 4,330.02 and 2,398.06

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Solution

The fourth proportional to 3,145.42, 4,330.02 and 2,398.06 is: 3,301.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,145.42 : 4,330.02 = 2,398.06 : x
  2. Step 2: Convert to fraction form
    3,145.42/4,330.02 = 2,398.06/x
  3. Step 3: Cross multiply
    3,145.42x = 4,330.02 × 2,398.06
  4. Step 4: Simplify right side
    3,145.42x = 10,383,647.76
  5. Step 5: Solve for x
    x = 10,383,647.76/3,145.42
  6. Step 6: Final answer
    x = 3,301.20

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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.