Home / 2,964.28-4,090.68-1,638.01

Finding the Fourth Proportional to 2,964.28, 4,090.68 and 1,638.01

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Solution

The fourth proportional to 2,964.28, 4,090.68 and 1,638.01 is: 2,260.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,964.28 : 4,090.68 = 1,638.01 : x
  2. Step 2: Convert to fraction form
    2,964.28/4,090.68 = 1,638.01/x
  3. Step 3: Cross multiply
    2,964.28x = 4,090.68 × 1,638.01
  4. Step 4: Simplify right side
    2,964.28x = 6,700,574.75
  5. Step 5: Solve for x
    x = 6,700,574.75/2,964.28
  6. Step 6: Final answer
    x = 2,260.44

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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.