Home / 3,386.39-5,079.93-1,277.49

Finding the Fourth Proportional to 3,386.39, 5,079.93 and 1,277.49

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Solution

The fourth proportional to 3,386.39, 5,079.93 and 1,277.49 is: 1,916.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,386.39 : 5,079.93 = 1,277.49 : x
  2. Step 2: Convert to fraction form
    3,386.39/5,079.93 = 1,277.49/x
  3. Step 3: Cross multiply
    3,386.39x = 5,079.93 × 1,277.49
  4. Step 4: Simplify right side
    3,386.39x = 6,489,527.99
  5. Step 5: Solve for x
    x = 6,489,527.99/3,386.39
  6. Step 6: Final answer
    x = 1,916.36

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1.5x scale

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.