Home / 2,531.81-3,818.45-2,504.21

Finding the Fourth Proportional to 2,531.81, 3,818.45 and 2,504.21

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Solution

The fourth proportional to 2,531.81, 3,818.45 and 2,504.21 is: 3,776.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,531.81 : 3,818.45 = 2,504.21 : x
  2. Step 2: Convert to fraction form
    2,531.81/3,818.45 = 2,504.21/x
  3. Step 3: Cross multiply
    2,531.81x = 3,818.45 × 2,504.21
  4. Step 4: Simplify right side
    2,531.81x = 9,562,169.06
  5. Step 5: Solve for x
    x = 9,562,169.06/2,531.81
  6. Step 6: Final answer
    x = 3,776.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.