Home / 7,338.24-10,126.69-3,980.99

Finding the Fourth Proportional to 7,338.24, 10,126.69 and 3,980.99

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Solution

The fourth proportional to 7,338.24, 10,126.69 and 3,980.99 is: 5,493.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,338.24 : 10,126.69 = 3,980.99 : x
  2. Step 2: Convert to fraction form
    7,338.24/10,126.69 = 3,980.99/x
  3. Step 3: Cross multiply
    7,338.24x = 10,126.69 × 3,980.99
  4. Step 4: Simplify right side
    7,338.24x = 40,314,266.99
  5. Step 5: Solve for x
    x = 40,314,266.99/7,338.24
  6. Step 6: Final answer
    x = 5,493.72

Related Problems

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Half scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.