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Finding the Fourth Proportional to 3,554.40, 4,900.16 and 2,890.16

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Solution

The fourth proportional to 3,554.40, 4,900.16 and 2,890.16 is: 3,984.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,554.40 : 4,900.16 = 2,890.16 : x
  2. Step 2: Convert to fraction form
    3,554.40/4,900.16 = 2,890.16/x
  3. Step 3: Cross multiply
    3,554.40x = 4,900.16 × 2,890.16
  4. Step 4: Simplify right side
    3,554.40x = 14,162,246.43
  5. Step 5: Solve for x
    x = 14,162,246.43/3,554.40
  6. Step 6: Final answer
    x = 3,984.43

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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.