Home / 5,476.12-8,215.60-1,580.84

Finding the Fourth Proportional to 5,476.12, 8,215.60 and 1,580.84

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Solution

The fourth proportional to 5,476.12, 8,215.60 and 1,580.84 is: 2,371.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,476.12 : 8,215.60 = 1,580.84 : x
  2. Step 2: Convert to fraction form
    5,476.12/8,215.60 = 1,580.84/x
  3. Step 3: Cross multiply
    5,476.12x = 8,215.60 × 1,580.84
  4. Step 4: Simplify right side
    5,476.12x = 12,987,549.10
  5. Step 5: Solve for x
    x = 12,987,549.10/5,476.12
  6. Step 6: Final answer
    x = 2,371.67

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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.