Home / 3,981.22-5,494.19-2,303.15

Finding the Fourth Proportional to 3,981.22, 5,494.19 and 2,303.15

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Solution

The fourth proportional to 3,981.22, 5,494.19 and 2,303.15 is: 3,178.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,981.22 : 5,494.19 = 2,303.15 : x
  2. Step 2: Convert to fraction form
    3,981.22/5,494.19 = 2,303.15/x
  3. Step 3: Cross multiply
    3,981.22x = 5,494.19 × 2,303.15
  4. Step 4: Simplify right side
    3,981.22x = 12,653,904.71
  5. Step 5: Solve for x
    x = 12,653,904.71/3,981.22
  6. Step 6: Final answer
    x = 3,178.40

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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.