Home / 5,631.01-7,770.11-3,112.77

Finding the Fourth Proportional to 5,631.01, 7,770.11 and 3,112.77

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Solution

The fourth proportional to 5,631.01, 7,770.11 and 3,112.77 is: 4,295.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,631.01 : 7,770.11 = 3,112.77 : x
  2. Step 2: Convert to fraction form
    5,631.01/7,770.11 = 3,112.77/x
  3. Step 3: Cross multiply
    5,631.01x = 7,770.11 × 3,112.77
  4. Step 4: Simplify right side
    5,631.01x = 24,186,549.74
  5. Step 5: Solve for x
    x = 24,186,549.74/5,631.01
  6. Step 6: Final answer
    x = 4,295.25

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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.