Home / 7,215.08-10,824.71-3,519.45

Finding the Fourth Proportional to 7,215.08, 10,824.71 and 3,519.45

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Solution

The fourth proportional to 7,215.08, 10,824.71 and 3,519.45 is: 5,280.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,215.08 : 10,824.71 = 3,519.45 : x
  2. Step 2: Convert to fraction form
    7,215.08/10,824.71 = 3,519.45/x
  3. Step 3: Cross multiply
    7,215.08x = 10,824.71 × 3,519.45
  4. Step 4: Simplify right side
    7,215.08x = 38,097,008.01
  5. Step 5: Solve for x
    x = 38,097,008.01/7,215.08
  6. Step 6: Final answer
    x = 5,280.20

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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.