Home / 7,142.27-9,857.48-4,490.06

Finding the Fourth Proportional to 7,142.27, 9,857.48 and 4,490.06

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Solution

The fourth proportional to 7,142.27, 9,857.48 and 4,490.06 is: 6,197.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,142.27 : 9,857.48 = 4,490.06 : x
  2. Step 2: Convert to fraction form
    7,142.27/9,857.48 = 4,490.06/x
  3. Step 3: Cross multiply
    7,142.27x = 9,857.48 × 4,490.06
  4. Step 4: Simplify right side
    7,142.27x = 44,260,604.91
  5. Step 5: Solve for x
    x = 44,260,604.91/7,142.27
  6. Step 6: Final answer
    x = 6,197.00

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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.