Home / 7,342.68-10,130.40-4,198.08

Finding the Fourth Proportional to 7,342.68, 10,130.40 and 4,198.08

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Solution

The fourth proportional to 7,342.68, 10,130.40 and 4,198.08 is: 5,791.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,342.68 : 10,130.40 = 4,198.08 : x
  2. Step 2: Convert to fraction form
    7,342.68/10,130.40 = 4,198.08/x
  3. Step 3: Cross multiply
    7,342.68x = 10,130.40 × 4,198.08
  4. Step 4: Simplify right side
    7,342.68x = 42,528,229.63
  5. Step 5: Solve for x
    x = 42,528,229.63/7,342.68
  6. Step 6: Final answer
    x = 5,791.92

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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.