Home / 7,145.24-9,851.22-4,622.90

Finding the Fourth Proportional to 7,145.24, 9,851.22 and 4,622.90

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Solution

The fourth proportional to 7,145.24, 9,851.22 and 4,622.90 is: 6,373.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,145.24 : 9,851.22 = 4,622.90 : x
  2. Step 2: Convert to fraction form
    7,145.24/9,851.22 = 4,622.90/x
  3. Step 3: Cross multiply
    7,145.24x = 9,851.22 × 4,622.90
  4. Step 4: Simplify right side
    7,145.24x = 45,541,155.68
  5. Step 5: Solve for x
    x = 45,541,155.68/7,145.24
  6. Step 6: Final answer
    x = 6,373.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.