Home / 2,239.28-3,090.56-2,140.84

Finding the Fourth Proportional to 2,239.28, 3,090.56 and 2,140.84

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Solution

The fourth proportional to 2,239.28, 3,090.56 and 2,140.84 is: 2,954.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,239.28 : 3,090.56 = 2,140.84 : x
  2. Step 2: Convert to fraction form
    2,239.28/3,090.56 = 2,140.84/x
  3. Step 3: Cross multiply
    2,239.28x = 3,090.56 × 2,140.84
  4. Step 4: Simplify right side
    2,239.28x = 6,616,394.47
  5. Step 5: Solve for x
    x = 6,616,394.47/2,239.28
  6. Step 6: Final answer
    x = 2,954.70

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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.