Home / 5,476.61-8,220.11-3,390.30

Finding the Fourth Proportional to 5,476.61, 8,220.11 and 3,390.30

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Solution

The fourth proportional to 5,476.61, 8,220.11 and 3,390.30 is: 5,088.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,476.61 : 8,220.11 = 3,390.30 : x
  2. Step 2: Convert to fraction form
    5,476.61/8,220.11 = 3,390.30/x
  3. Step 3: Cross multiply
    5,476.61x = 8,220.11 × 3,390.30
  4. Step 4: Simplify right side
    5,476.61x = 27,868,638.93
  5. Step 5: Solve for x
    x = 27,868,638.93/5,476.61
  6. Step 6: Final answer
    x = 5,088.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.