Home / 7,468.80-11,202.88-2,538.40

Finding the Fourth Proportional to 7,468.80, 11,202.88 and 2,538.40

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Solution

The fourth proportional to 7,468.80, 11,202.88 and 2,538.40 is: 3,807.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,468.80 : 11,202.88 = 2,538.40 : x
  2. Step 2: Convert to fraction form
    7,468.80/11,202.88 = 2,538.40/x
  3. Step 3: Cross multiply
    7,468.80x = 11,202.88 × 2,538.40
  4. Step 4: Simplify right side
    7,468.80x = 28,437,390.59
  5. Step 5: Solve for x
    x = 28,437,390.59/7,468.80
  6. Step 6: Final answer
    x = 3,807.49

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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.