Home / 2,690.47-4,031.14-1,304.46

Finding the Fourth Proportional to 2,690.47, 4,031.14 and 1,304.46

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Solution

The fourth proportional to 2,690.47, 4,031.14 and 1,304.46 is: 1,954.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,690.47 : 4,031.14 = 1,304.46 : x
  2. Step 2: Convert to fraction form
    2,690.47/4,031.14 = 1,304.46/x
  3. Step 3: Cross multiply
    2,690.47x = 4,031.14 × 1,304.46
  4. Step 4: Simplify right side
    2,690.47x = 5,258,460.88
  5. Step 5: Solve for x
    x = 5,258,460.88/2,690.47
  6. Step 6: Final answer
    x = 1,954.48

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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.