Home / 2,754.15-4,130.74-1,272.93

Finding the Fourth Proportional to 2,754.15, 4,130.74 and 1,272.93

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Solution

The fourth proportional to 2,754.15, 4,130.74 and 1,272.93 is: 1,909.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,754.15 : 4,130.74 = 1,272.93 : x
  2. Step 2: Convert to fraction form
    2,754.15/4,130.74 = 1,272.93/x
  3. Step 3: Cross multiply
    2,754.15x = 4,130.74 × 1,272.93
  4. Step 4: Simplify right side
    2,754.15x = 5,258,142.87
  5. Step 5: Solve for x
    x = 5,258,142.87/2,754.15
  6. Step 6: Final answer
    x = 1,909.17

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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.