Home / 5,628.35-8,436.74-2,117.72

Finding the Fourth Proportional to 5,628.35, 8,436.74 and 2,117.72

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Solution

The fourth proportional to 5,628.35, 8,436.74 and 2,117.72 is: 3,174.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,628.35 : 8,436.74 = 2,117.72 : x
  2. Step 2: Convert to fraction form
    5,628.35/8,436.74 = 2,117.72/x
  3. Step 3: Cross multiply
    5,628.35x = 8,436.74 × 2,117.72
  4. Step 4: Simplify right side
    5,628.35x = 17,866,610.85
  5. Step 5: Solve for x
    x = 17,866,610.85/5,628.35
  6. Step 6: Final answer
    x = 3,174.40

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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.