Home / 7,579.78-10,459.28-4,221.95

Finding the Fourth Proportional to 7,579.78, 10,459.28 and 4,221.95

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Solution

The fourth proportional to 7,579.78, 10,459.28 and 4,221.95 is: 5,825.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,579.78 : 10,459.28 = 4,221.95 : x
  2. Step 2: Convert to fraction form
    7,579.78/10,459.28 = 4,221.95/x
  3. Step 3: Cross multiply
    7,579.78x = 10,459.28 × 4,221.95
  4. Step 4: Simplify right side
    7,579.78x = 44,158,533.84
  5. Step 5: Solve for x
    x = 44,158,533.84/7,579.78
  6. Step 6: Final answer
    x = 5,825.83

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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.