Home / 7,721.10-10,657.26-4,579.20

Finding the Fourth Proportional to 7,721.10, 10,657.26 and 4,579.20

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Solution

The fourth proportional to 7,721.10, 10,657.26 and 4,579.20 is: 6,320.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,721.10 : 10,657.26 = 4,579.20 : x
  2. Step 2: Convert to fraction form
    7,721.10/10,657.26 = 4,579.20/x
  3. Step 3: Cross multiply
    7,721.10x = 10,657.26 × 4,579.20
  4. Step 4: Simplify right side
    7,721.10x = 48,801,724.99
  5. Step 5: Solve for x
    x = 48,801,724.99/7,721.10
  6. Step 6: Final answer
    x = 6,320.57

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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.