Home / 5,226.95-7,840.38-1,331.35

Finding the Fourth Proportional to 5,226.95, 7,840.38 and 1,331.35

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Solution

The fourth proportional to 5,226.95, 7,840.38 and 1,331.35 is: 1,997.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,226.95 : 7,840.38 = 1,331.35 : x
  2. Step 2: Convert to fraction form
    5,226.95/7,840.38 = 1,331.35/x
  3. Step 3: Cross multiply
    5,226.95x = 7,840.38 × 1,331.35
  4. Step 4: Simplify right side
    5,226.95x = 10,438,289.91
  5. Step 5: Solve for x
    x = 10,438,289.91/5,226.95
  6. Step 6: Final answer
    x = 1,997.01

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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.