Home / 2,431.04-3,347.77-2,111.86

Finding the Fourth Proportional to 2,431.04, 3,347.77 and 2,111.86

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Solution

The fourth proportional to 2,431.04, 3,347.77 and 2,111.86 is: 2,908.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,431.04 : 3,347.77 = 2,111.86 : x
  2. Step 2: Convert to fraction form
    2,431.04/3,347.77 = 2,111.86/x
  3. Step 3: Cross multiply
    2,431.04x = 3,347.77 × 2,111.86
  4. Step 4: Simplify right side
    2,431.04x = 7,070,021.19
  5. Step 5: Solve for x
    x = 7,070,021.19/2,431.04
  6. Step 6: Final answer
    x = 2,908.23

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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.