Home / 6,440.67-8,885.57-3,783.87

Finding the Fourth Proportional to 6,440.67, 8,885.57 and 3,783.87

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Solution

The fourth proportional to 6,440.67, 8,885.57 and 3,783.87 is: 5,220.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,440.67 : 8,885.57 = 3,783.87 : x
  2. Step 2: Convert to fraction form
    6,440.67/8,885.57 = 3,783.87/x
  3. Step 3: Cross multiply
    6,440.67x = 8,885.57 × 3,783.87
  4. Step 4: Simplify right side
    6,440.67x = 33,621,822.84
  5. Step 5: Solve for x
    x = 33,621,822.84/6,440.67
  6. Step 6: Final answer
    x = 5,220.24

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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.