Home / 4,987.70-7,474.35-2,212.10

Finding the Fourth Proportional to 4,987.70, 7,474.35 and 2,212.10

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Solution

The fourth proportional to 4,987.70, 7,474.35 and 2,212.10 is: 3,314.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,987.70 : 7,474.35 = 2,212.10 : x
  2. Step 2: Convert to fraction form
    4,987.70/7,474.35 = 2,212.10/x
  3. Step 3: Cross multiply
    4,987.70x = 7,474.35 × 2,212.10
  4. Step 4: Simplify right side
    4,987.70x = 16,534,009.64
  5. Step 5: Solve for x
    x = 16,534,009.64/4,987.70
  6. Step 6: Final answer
    x = 3,314.96

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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.