Home / 7,340.08-10,129.84-4,196.40

Finding the Fourth Proportional to 7,340.08, 10,129.84 and 4,196.40

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Solution

The fourth proportional to 7,340.08, 10,129.84 and 4,196.40 is: 5,791.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,340.08 : 10,129.84 = 4,196.40 : x
  2. Step 2: Convert to fraction form
    7,340.08/10,129.84 = 4,196.40/x
  3. Step 3: Cross multiply
    7,340.08x = 10,129.84 × 4,196.40
  4. Step 4: Simplify right side
    7,340.08x = 42,508,860.58
  5. Step 5: Solve for x
    x = 42,508,860.58/7,340.08
  6. Step 6: Final answer
    x = 5,791.33

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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.