Home / 7,242.80-10,856.88-4,322.48

Finding the Fourth Proportional to 7,242.80, 10,856.88 and 4,322.48

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Solution

The fourth proportional to 7,242.80, 10,856.88 and 4,322.48 is: 6,479.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,242.80 : 10,856.88 = 4,322.48 : x
  2. Step 2: Convert to fraction form
    7,242.80/10,856.88 = 4,322.48/x
  3. Step 3: Cross multiply
    7,242.80x = 10,856.88 × 4,322.48
  4. Step 4: Simplify right side
    7,242.80x = 46,928,646.66
  5. Step 5: Solve for x
    x = 46,928,646.66/7,242.80
  6. Step 6: Final answer
    x = 6,479.35

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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.