Home / 3,557.20-5,337.40-1,608.40

Finding the Fourth Proportional to 3,557.20, 5,337.40 and 1,608.40

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Solution

The fourth proportional to 3,557.20, 5,337.40 and 1,608.40 is: 2,413.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,557.20 : 5,337.40 = 1,608.40 : x
  2. Step 2: Convert to fraction form
    3,557.20/5,337.40 = 1,608.40/x
  3. Step 3: Cross multiply
    3,557.20x = 5,337.40 × 1,608.40
  4. Step 4: Simplify right side
    3,557.20x = 8,584,674.16
  5. Step 5: Solve for x
    x = 8,584,674.16/3,557.20
  6. Step 6: Final answer
    x = 2,413.32

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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.