Home / 5,218.49-7,201.29-3,123.77

Finding the Fourth Proportional to 5,218.49, 7,201.29 and 3,123.77

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Solution

The fourth proportional to 5,218.49, 7,201.29 and 3,123.77 is: 4,310.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,218.49 : 7,201.29 = 3,123.77 : x
  2. Step 2: Convert to fraction form
    5,218.49/7,201.29 = 3,123.77/x
  3. Step 3: Cross multiply
    5,218.49x = 7,201.29 × 3,123.77
  4. Step 4: Simplify right side
    5,218.49x = 22,495,173.66
  5. Step 5: Solve for x
    x = 22,495,173.66/5,218.49
  6. Step 6: Final answer
    x = 4,310.67

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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.