Home / 7,346.16-10,137.72-3,988.98

Finding the Fourth Proportional to 7,346.16, 10,137.72 and 3,988.98

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Solution

The fourth proportional to 7,346.16, 10,137.72 and 3,988.98 is: 5,504.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,346.16 : 10,137.72 = 3,988.98 : x
  2. Step 2: Convert to fraction form
    7,346.16/10,137.72 = 3,988.98/x
  3. Step 3: Cross multiply
    7,346.16x = 10,137.72 × 3,988.98
  4. Step 4: Simplify right side
    7,346.16x = 40,439,162.33
  5. Step 5: Solve for x
    x = 40,439,162.33/7,346.16
  6. Step 6: Final answer
    x = 5,504.80

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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.