Home / 6,259.79-8,638.61-3,427.12

Finding the Fourth Proportional to 6,259.79, 8,638.61 and 3,427.12

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Solution

The fourth proportional to 6,259.79, 8,638.61 and 3,427.12 is: 4,729.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,259.79 : 8,638.61 = 3,427.12 : x
  2. Step 2: Convert to fraction form
    6,259.79/8,638.61 = 3,427.12/x
  3. Step 3: Cross multiply
    6,259.79x = 8,638.61 × 3,427.12
  4. Step 4: Simplify right side
    6,259.79x = 29,605,528.34
  5. Step 5: Solve for x
    x = 29,605,528.34/6,259.79
  6. Step 6: Final answer
    x = 4,729.48

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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.