Home / 3,422.74-5,130.55-1,940.14

Finding the Fourth Proportional to 3,422.74, 5,130.55 and 1,940.14

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Solution

The fourth proportional to 3,422.74, 5,130.55 and 1,940.14 is: 2,908.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,422.74 : 5,130.55 = 1,940.14 : x
  2. Step 2: Convert to fraction form
    3,422.74/5,130.55 = 1,940.14/x
  3. Step 3: Cross multiply
    3,422.74x = 5,130.55 × 1,940.14
  4. Step 4: Simplify right side
    3,422.74x = 9,953,985.28
  5. Step 5: Solve for x
    x = 9,953,985.28/3,422.74
  6. Step 6: Final answer
    x = 2,908.19

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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.