Home / 4,742.45-7,114.52-1,621.73

Finding the Fourth Proportional to 4,742.45, 7,114.52 and 1,621.73

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Solution

The fourth proportional to 4,742.45, 7,114.52 and 1,621.73 is: 2,432.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,742.45 : 7,114.52 = 1,621.73 : x
  2. Step 2: Convert to fraction form
    4,742.45/7,114.52 = 1,621.73/x
  3. Step 3: Cross multiply
    4,742.45x = 7,114.52 × 1,621.73
  4. Step 4: Simplify right side
    4,742.45x = 11,537,803.22
  5. Step 5: Solve for x
    x = 11,537,803.22/4,742.45
  6. Step 6: Final answer
    x = 2,432.88

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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.