Home / 6,102.32-8,421.56-4,113.20

Finding the Fourth Proportional to 6,102.32, 8,421.56 and 4,113.20

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Solution

The fourth proportional to 6,102.32, 8,421.56 and 4,113.20 is: 5,676.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,102.32 : 8,421.56 = 4,113.20 : x
  2. Step 2: Convert to fraction form
    6,102.32/8,421.56 = 4,113.20/x
  3. Step 3: Cross multiply
    6,102.32x = 8,421.56 × 4,113.20
  4. Step 4: Simplify right side
    6,102.32x = 34,639,560.59
  5. Step 5: Solve for x
    x = 34,639,560.59/6,102.32
  6. Step 6: Final answer
    x = 5,676.46

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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.