Home / 3,386.99-5,081.12-1,538.23

Finding the Fourth Proportional to 3,386.99, 5,081.12 and 1,538.23

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Solution

The fourth proportional to 3,386.99, 5,081.12 and 1,538.23 is: 2,307.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,386.99 : 5,081.12 = 1,538.23 : x
  2. Step 2: Convert to fraction form
    3,386.99/5,081.12 = 1,538.23/x
  3. Step 3: Cross multiply
    3,386.99x = 5,081.12 × 1,538.23
  4. Step 4: Simplify right side
    3,386.99x = 7,815,923.53
  5. Step 5: Solve for x
    x = 7,815,923.53/3,386.99
  6. Step 6: Final answer
    x = 2,307.63

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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.