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Finding the Fourth Proportional to 2,950.12, 4,425.90 and 898.12

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Solution

The fourth proportional to 2,950.12, 4,425.90 and 898.12 is: 1,347.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,950.12 : 4,425.90 = 898.12 : x
  2. Step 2: Convert to fraction form
    2,950.12/4,425.90 = 898.12/x
  3. Step 3: Cross multiply
    2,950.12x = 4,425.90 × 898.12
  4. Step 4: Simplify right side
    2,950.12x = 3,974,989.31
  5. Step 5: Solve for x
    x = 3,974,989.31/2,950.12
  6. Step 6: Final answer
    x = 1,347.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.