Home / 6,561.40-9,851.10-4,235.80

Finding the Fourth Proportional to 6,561.40, 9,851.10 and 4,235.80

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Solution

The fourth proportional to 6,561.40, 9,851.10 and 4,235.80 is: 6,359.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,561.40 : 9,851.10 = 4,235.80 : x
  2. Step 2: Convert to fraction form
    6,561.40/9,851.10 = 4,235.80/x
  3. Step 3: Cross multiply
    6,561.40x = 9,851.10 × 4,235.80
  4. Step 4: Simplify right side
    6,561.40x = 41,727,289.38
  5. Step 5: Solve for x
    x = 41,727,289.38/6,561.40
  6. Step 6: Final answer
    x = 6,359.51

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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.