Home / 7,927.12-10,939.77-4,390.33

Finding the Fourth Proportional to 7,927.12, 10,939.77 and 4,390.33

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Solution

The fourth proportional to 7,927.12, 10,939.77 and 4,390.33 is: 6,058.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,927.12 : 10,939.77 = 4,390.33 : x
  2. Step 2: Convert to fraction form
    7,927.12/10,939.77 = 4,390.33/x
  3. Step 3: Cross multiply
    7,927.12x = 10,939.77 × 4,390.33
  4. Step 4: Simplify right side
    7,927.12x = 48,029,200.42
  5. Step 5: Solve for x
    x = 48,029,200.42/7,927.12
  6. Step 6: Final answer
    x = 6,058.85

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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.