Home / 7,281.24-10,912.70-3,116.32

Finding the Fourth Proportional to 7,281.24, 10,912.70 and 3,116.32

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Solution

The fourth proportional to 7,281.24, 10,912.70 and 3,116.32 is: 4,670.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,281.24 : 10,912.70 = 3,116.32 : x
  2. Step 2: Convert to fraction form
    7,281.24/10,912.70 = 3,116.32/x
  3. Step 3: Cross multiply
    7,281.24x = 10,912.70 × 3,116.32
  4. Step 4: Simplify right side
    7,281.24x = 34,007,498.39
  5. Step 5: Solve for x
    x = 34,007,498.39/7,281.24
  6. Step 6: Final answer
    x = 4,670.56

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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.