Home / 5,579.29-7,680.09-4,822.72

Finding the Fourth Proportional to 5,579.29, 7,680.09 and 4,822.72

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Solution

The fourth proportional to 5,579.29, 7,680.09 and 4,822.72 is: 6,638.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,579.29 : 7,680.09 = 4,822.72 : x
  2. Step 2: Convert to fraction form
    5,579.29/7,680.09 = 4,822.72/x
  3. Step 3: Cross multiply
    5,579.29x = 7,680.09 × 4,822.72
  4. Step 4: Simplify right side
    5,579.29x = 37,038,923.64
  5. Step 5: Solve for x
    x = 37,038,923.64/5,579.29
  6. Step 6: Final answer
    x = 6,638.64

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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.