Home / 4,247.91-5,864.94-3,130.11

Finding the Fourth Proportional to 4,247.91, 5,864.94 and 3,130.11

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Solution

The fourth proportional to 4,247.91, 5,864.94 and 3,130.11 is: 4,321.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,247.91 : 5,864.94 = 3,130.11 : x
  2. Step 2: Convert to fraction form
    4,247.91/5,864.94 = 3,130.11/x
  3. Step 3: Cross multiply
    4,247.91x = 5,864.94 × 3,130.11
  4. Step 4: Simplify right side
    4,247.91x = 18,357,907.34
  5. Step 5: Solve for x
    x = 18,357,907.34/4,247.91
  6. Step 6: Final answer
    x = 4,321.63

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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.