Home / 7,620.53-10,520.87-4,790.30

Finding the Fourth Proportional to 7,620.53, 10,520.87 and 4,790.30

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Solution

The fourth proportional to 7,620.53, 10,520.87 and 4,790.30 is: 6,613.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,620.53 : 10,520.87 = 4,790.30 : x
  2. Step 2: Convert to fraction form
    7,620.53/10,520.87 = 4,790.30/x
  3. Step 3: Cross multiply
    7,620.53x = 10,520.87 × 4,790.30
  4. Step 4: Simplify right side
    7,620.53x = 50,398,047.01
  5. Step 5: Solve for x
    x = 50,398,047.01/7,620.53
  6. Step 6: Final answer
    x = 6,613.46

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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.