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Finding the Fourth Proportional to 2,827.95, 3,903.29 and 1,885.31

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Solution

The fourth proportional to 2,827.95, 3,903.29 and 1,885.31 is: 2,602.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,827.95 : 3,903.29 = 1,885.31 : x
  2. Step 2: Convert to fraction form
    2,827.95/3,903.29 = 1,885.31/x
  3. Step 3: Cross multiply
    2,827.95x = 3,903.29 × 1,885.31
  4. Step 4: Simplify right side
    2,827.95x = 7,358,882.73
  5. Step 5: Solve for x
    x = 7,358,882.73/2,827.95
  6. Step 6: Final answer
    x = 2,602.20

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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.