Home / 2,275.07-3,130.21-1,776.84

Finding the Fourth Proportional to 2,275.07, 3,130.21 and 1,776.84

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Solution

The fourth proportional to 2,275.07, 3,130.21 and 1,776.84 is: 2,444.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,275.07 : 3,130.21 = 1,776.84 : x
  2. Step 2: Convert to fraction form
    2,275.07/3,130.21 = 1,776.84/x
  3. Step 3: Cross multiply
    2,275.07x = 3,130.21 × 1,776.84
  4. Step 4: Simplify right side
    2,275.07x = 5,561,891.73
  5. Step 5: Solve for x
    x = 5,561,891.73/2,275.07
  6. Step 6: Final answer
    x = 2,444.71

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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.