Home / 5,430.24-8,139.96-3,235.68

Finding the Fourth Proportional to 5,430.24, 8,139.96 and 3,235.68

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Solution

The fourth proportional to 5,430.24, 8,139.96 and 3,235.68 is: 4,850.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,430.24 : 8,139.96 = 3,235.68 : x
  2. Step 2: Convert to fraction form
    5,430.24/8,139.96 = 3,235.68/x
  3. Step 3: Cross multiply
    5,430.24x = 8,139.96 × 3,235.68
  4. Step 4: Simplify right side
    5,430.24x = 26,338,305.77
  5. Step 5: Solve for x
    x = 26,338,305.77/5,430.24
  6. Step 6: Final answer
    x = 4,850.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.