Home / 5,535.40-7,638.06-3,438.76

Finding the Fourth Proportional to 5,535.40, 7,638.06 and 3,438.76

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Solution

The fourth proportional to 5,535.40, 7,638.06 and 3,438.76 is: 4,745.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,535.40 : 7,638.06 = 3,438.76 : x
  2. Step 2: Convert to fraction form
    5,535.40/7,638.06 = 3,438.76/x
  3. Step 3: Cross multiply
    5,535.40x = 7,638.06 × 3,438.76
  4. Step 4: Simplify right side
    5,535.40x = 26,265,455.21
  5. Step 5: Solve for x
    x = 26,265,455.21/5,535.40
  6. Step 6: Final answer
    x = 4,745.00

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Half scale
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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.