Home / 5,226.45-7,840.80-1,528.40

Finding the Fourth Proportional to 5,226.45, 7,840.80 and 1,528.40

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Solution

The fourth proportional to 5,226.45, 7,840.80 and 1,528.40 is: 2,292.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,226.45 : 7,840.80 = 1,528.40 : x
  2. Step 2: Convert to fraction form
    5,226.45/7,840.80 = 1,528.40/x
  3. Step 3: Cross multiply
    5,226.45x = 7,840.80 × 1,528.40
  4. Step 4: Simplify right side
    5,226.45x = 11,983,839.52
  5. Step 5: Solve for x
    x = 11,983,839.52/5,226.45
  6. Step 6: Final answer
    x = 2,292.92

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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.