Home / 7,926.76-10,939.54-4,390.30

Finding the Fourth Proportional to 7,926.76, 10,939.54 and 4,390.30

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Solution

The fourth proportional to 7,926.76, 10,939.54 and 4,390.30 is: 6,058.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,926.76 : 10,939.54 = 4,390.30 : x
  2. Step 2: Convert to fraction form
    7,926.76/10,939.54 = 4,390.30/x
  3. Step 3: Cross multiply
    7,926.76x = 10,939.54 × 4,390.30
  4. Step 4: Simplify right side
    7,926.76x = 48,027,862.46
  5. Step 5: Solve for x
    x = 48,027,862.46/7,926.76
  6. Step 6: Final answer
    x = 6,058.95

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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.