Home / 3,111.99-4,294.34-1,853.14

Finding the Fourth Proportional to 3,111.99, 4,294.34 and 1,853.14

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Solution

The fourth proportional to 3,111.99, 4,294.34 and 1,853.14 is: 2,557.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,111.99 : 4,294.34 = 1,853.14 : x
  2. Step 2: Convert to fraction form
    3,111.99/4,294.34 = 1,853.14/x
  3. Step 3: Cross multiply
    3,111.99x = 4,294.34 × 1,853.14
  4. Step 4: Simplify right side
    3,111.99x = 7,957,991.76
  5. Step 5: Solve for x
    x = 7,957,991.76/3,111.99
  6. Step 6: Final answer
    x = 2,557.20

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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.