Home / 7,931.44-11,888.58-3,542.86

Finding the Fourth Proportional to 7,931.44, 11,888.58 and 3,542.86

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Solution

The fourth proportional to 7,931.44, 11,888.58 and 3,542.86 is: 5,310.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,931.44 : 11,888.58 = 3,542.86 : x
  2. Step 2: Convert to fraction form
    7,931.44/11,888.58 = 3,542.86/x
  3. Step 3: Cross multiply
    7,931.44x = 11,888.58 × 3,542.86
  4. Step 4: Simplify right side
    7,931.44x = 42,119,574.54
  5. Step 5: Solve for x
    x = 42,119,574.54/7,931.44
  6. Step 6: Final answer
    x = 5,310.46

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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.