Home / 2,380.66-3,286.77-1,885.30

Finding the Fourth Proportional to 2,380.66, 3,286.77 and 1,885.30

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Solution

The fourth proportional to 2,380.66, 3,286.77 and 1,885.30 is: 2,602.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,380.66 : 3,286.77 = 1,885.30 : x
  2. Step 2: Convert to fraction form
    2,380.66/3,286.77 = 1,885.30/x
  3. Step 3: Cross multiply
    2,380.66x = 3,286.77 × 1,885.30
  4. Step 4: Simplify right side
    2,380.66x = 6,196,547.48
  5. Step 5: Solve for x
    x = 6,196,547.48/2,380.66
  6. Step 6: Final answer
    x = 2,602.87

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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.