Home / 7,493.40-11,240.10-3,109.68

Finding the Fourth Proportional to 7,493.40, 11,240.10 and 3,109.68

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Solution

The fourth proportional to 7,493.40, 11,240.10 and 3,109.68 is: 4,664.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,493.40 : 11,240.10 = 3,109.68 : x
  2. Step 2: Convert to fraction form
    7,493.40/11,240.10 = 3,109.68/x
  3. Step 3: Cross multiply
    7,493.40x = 11,240.10 × 3,109.68
  4. Step 4: Simplify right side
    7,493.40x = 34,953,114.17
  5. Step 5: Solve for x
    x = 34,953,114.17/7,493.40
  6. Step 6: Final answer
    x = 4,664.52

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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.