Home / 7,809.21-10,777.05-4,822.74

Finding the Fourth Proportional to 7,809.21, 10,777.05 and 4,822.74

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Solution

The fourth proportional to 7,809.21, 10,777.05 and 4,822.74 is: 6,655.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,809.21 : 10,777.05 = 4,822.74 : x
  2. Step 2: Convert to fraction form
    7,809.21/10,777.05 = 4,822.74/x
  3. Step 3: Cross multiply
    7,809.21x = 10,777.05 × 4,822.74
  4. Step 4: Simplify right side
    7,809.21x = 51,974,910.12
  5. Step 5: Solve for x
    x = 51,974,910.12/7,809.21
  6. Step 6: Final answer
    x = 6,655.59

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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.