Home / 5,399.29-7,453.11-4,220.74

Finding the Fourth Proportional to 5,399.29, 7,453.11 and 4,220.74

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Solution

The fourth proportional to 5,399.29, 7,453.11 and 4,220.74 is: 5,826.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,399.29 : 7,453.11 = 4,220.74 : x
  2. Step 2: Convert to fraction form
    5,399.29/7,453.11 = 4,220.74/x
  3. Step 3: Cross multiply
    5,399.29x = 7,453.11 × 4,220.74
  4. Step 4: Simplify right side
    5,399.29x = 31,457,639.50
  5. Step 5: Solve for x
    x = 31,457,639.50/5,399.29
  6. Step 6: Final answer
    x = 5,826.25

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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.