Home / 3,015.98-4,530.90-2,140.66

Finding the Fourth Proportional to 3,015.98, 4,530.90 and 2,140.66

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Solution

The fourth proportional to 3,015.98, 4,530.90 and 2,140.66 is: 3,215.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,015.98 : 4,530.90 = 2,140.66 : x
  2. Step 2: Convert to fraction form
    3,015.98/4,530.90 = 2,140.66/x
  3. Step 3: Cross multiply
    3,015.98x = 4,530.90 × 2,140.66
  4. Step 4: Simplify right side
    3,015.98x = 9,699,093.74
  5. Step 5: Solve for x
    x = 9,699,093.74/3,015.98
  6. Step 6: Final answer
    x = 3,215.90

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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.