Home / 3,034.05-4,187.67-1,985.50

Finding the Fourth Proportional to 3,034.05, 4,187.67 and 1,985.50

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Solution

The fourth proportional to 3,034.05, 4,187.67 and 1,985.50 is: 2,740.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,034.05 : 4,187.67 = 1,985.50 : x
  2. Step 2: Convert to fraction form
    3,034.05/4,187.67 = 1,985.50/x
  3. Step 3: Cross multiply
    3,034.05x = 4,187.67 × 1,985.50
  4. Step 4: Simplify right side
    3,034.05x = 8,314,608.86
  5. Step 5: Solve for x
    x = 8,314,608.86/3,034.05
  6. Step 6: Final answer
    x = 2,740.44

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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.