Home / 3,111.86-4,294.95-2,453.87

Finding the Fourth Proportional to 3,111.86, 4,294.95 and 2,453.87

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Solution

The fourth proportional to 3,111.86, 4,294.95 and 2,453.87 is: 3,386.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,111.86 : 4,294.95 = 2,453.87 : x
  2. Step 2: Convert to fraction form
    3,111.86/4,294.95 = 2,453.87/x
  3. Step 3: Cross multiply
    3,111.86x = 4,294.95 × 2,453.87
  4. Step 4: Simplify right side
    3,111.86x = 10,539,248.96
  5. Step 5: Solve for x
    x = 10,539,248.96/3,111.86
  6. Step 6: Final answer
    x = 3,386.80

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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.