Home / 5,620.08-7,755.84-3,102.40

Finding the Fourth Proportional to 5,620.08, 7,755.84 and 3,102.40

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Solution

The fourth proportional to 5,620.08, 7,755.84 and 3,102.40 is: 4,281.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,620.08 : 7,755.84 = 3,102.40 : x
  2. Step 2: Convert to fraction form
    5,620.08/7,755.84 = 3,102.40/x
  3. Step 3: Cross multiply
    5,620.08x = 7,755.84 × 3,102.40
  4. Step 4: Simplify right side
    5,620.08x = 24,061,718.02
  5. Step 5: Solve for x
    x = 24,061,718.02/5,620.08
  6. Step 6: Final answer
    x = 4,281.38

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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.