Home / 6,421.96-8,856.30-4,059.88

Finding the Fourth Proportional to 6,421.96, 8,856.30 and 4,059.88

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Solution

The fourth proportional to 6,421.96, 8,856.30 and 4,059.88 is: 5,598.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,421.96 : 8,856.30 = 4,059.88 : x
  2. Step 2: Convert to fraction form
    6,421.96/8,856.30 = 4,059.88/x
  3. Step 3: Cross multiply
    6,421.96x = 8,856.30 × 4,059.88
  4. Step 4: Simplify right side
    6,421.96x = 35,955,515.24
  5. Step 5: Solve for x
    x = 35,955,515.24/6,421.96
  6. Step 6: Final answer
    x = 5,598.84

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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.