Home / 2,266.21-3,127.51-1,271.55

Finding the Fourth Proportional to 2,266.21, 3,127.51 and 1,271.55

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Solution

The fourth proportional to 2,266.21, 3,127.51 and 1,271.55 is: 1,754.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,266.21 : 3,127.51 = 1,271.55 : x
  2. Step 2: Convert to fraction form
    2,266.21/3,127.51 = 1,271.55/x
  3. Step 3: Cross multiply
    2,266.21x = 3,127.51 × 1,271.55
  4. Step 4: Simplify right side
    2,266.21x = 3,976,798.66
  5. Step 5: Solve for x
    x = 3,976,798.66/2,266.21
  6. Step 6: Final answer
    x = 1,754.82

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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.