Home / 1,397.61-2,095.07-1,277.33

Finding the Fourth Proportional to 1,397.61, 2,095.07 and 1,277.33

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Solution

The fourth proportional to 1,397.61, 2,095.07 and 1,277.33 is: 1,914.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,397.61 : 2,095.07 = 1,277.33 : x
  2. Step 2: Convert to fraction form
    1,397.61/2,095.07 = 1,277.33/x
  3. Step 3: Cross multiply
    1,397.61x = 2,095.07 × 1,277.33
  4. Step 4: Simplify right side
    1,397.61x = 2,676,078.90
  5. Step 5: Solve for x
    x = 2,676,078.90/1,397.61
  6. Step 6: Final answer
    x = 1,914.75

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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.