Home / 2,557.47-3,531.06-1,958.91

Finding the Fourth Proportional to 2,557.47, 3,531.06 and 1,958.91

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Solution

The fourth proportional to 2,557.47, 3,531.06 and 1,958.91 is: 2,704.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,557.47 : 3,531.06 = 1,958.91 : x
  2. Step 2: Convert to fraction form
    2,557.47/3,531.06 = 1,958.91/x
  3. Step 3: Cross multiply
    2,557.47x = 3,531.06 × 1,958.91
  4. Step 4: Simplify right side
    2,557.47x = 6,917,028.74
  5. Step 5: Solve for x
    x = 6,917,028.74/2,557.47
  6. Step 6: Final answer
    x = 2,704.64

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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.