Home / 2,140.42-3,212.46-1,525.63

Finding the Fourth Proportional to 2,140.42, 3,212.46 and 1,525.63

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Solution

The fourth proportional to 2,140.42, 3,212.46 and 1,525.63 is: 2,289.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,140.42 : 3,212.46 = 1,525.63 : x
  2. Step 2: Convert to fraction form
    2,140.42/3,212.46 = 1,525.63/x
  3. Step 3: Cross multiply
    2,140.42x = 3,212.46 × 1,525.63
  4. Step 4: Simplify right side
    2,140.42x = 4,901,025.35
  5. Step 5: Solve for x
    x = 4,901,025.35/2,140.42
  6. Step 6: Final answer
    x = 2,289.75

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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.