Home / 4,947.42-7,421.13-2,209.50

Finding the Fourth Proportional to 4,947.42, 7,421.13 and 2,209.50

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Solution

The fourth proportional to 4,947.42, 7,421.13 and 2,209.50 is: 3,314.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,947.42 : 7,421.13 = 2,209.50 : x
  2. Step 2: Convert to fraction form
    4,947.42/7,421.13 = 2,209.50/x
  3. Step 3: Cross multiply
    4,947.42x = 7,421.13 × 2,209.50
  4. Step 4: Simplify right side
    4,947.42x = 16,396,986.74
  5. Step 5: Solve for x
    x = 16,396,986.74/4,947.42
  6. Step 6: Final answer
    x = 3,314.25

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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.