Home / 5,135.74-7,089.87-3,248.98

Finding the Fourth Proportional to 5,135.74, 7,089.87 and 3,248.98

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Solution

The fourth proportional to 5,135.74, 7,089.87 and 3,248.98 is: 4,485.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,135.74 : 7,089.87 = 3,248.98 : x
  2. Step 2: Convert to fraction form
    5,135.74/7,089.87 = 3,248.98/x
  3. Step 3: Cross multiply
    5,135.74x = 7,089.87 × 3,248.98
  4. Step 4: Simplify right side
    5,135.74x = 23,034,845.83
  5. Step 5: Solve for x
    x = 23,034,845.83/5,135.74
  6. Step 6: Final answer
    x = 4,485.20

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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.