Home / 2,698.68-4,031.43-2,261.28

Finding the Fourth Proportional to 2,698.68, 4,031.43 and 2,261.28

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Solution

The fourth proportional to 2,698.68, 4,031.43 and 2,261.28 is: 3,378.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,698.68 : 4,031.43 = 2,261.28 : x
  2. Step 2: Convert to fraction form
    2,698.68/4,031.43 = 2,261.28/x
  3. Step 3: Cross multiply
    2,698.68x = 4,031.43 × 2,261.28
  4. Step 4: Simplify right side
    2,698.68x = 9,116,192.03
  5. Step 5: Solve for x
    x = 9,116,192.03/2,698.68
  6. Step 6: Final answer
    x = 3,378.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.