Home / 5,285.28-7,920.54-4,501.20

Finding the Fourth Proportional to 5,285.28, 7,920.54 and 4,501.20

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Solution

The fourth proportional to 5,285.28, 7,920.54 and 4,501.20 is: 6,745.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,285.28 : 7,920.54 = 4,501.20 : x
  2. Step 2: Convert to fraction form
    5,285.28/7,920.54 = 4,501.20/x
  3. Step 3: Cross multiply
    5,285.28x = 7,920.54 × 4,501.20
  4. Step 4: Simplify right side
    5,285.28x = 35,651,934.65
  5. Step 5: Solve for x
    x = 35,651,934.65/5,285.28
  6. Step 6: Final answer
    x = 6,745.51

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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.