Home / 6,419.10-9,628.65-3,134.30

Finding the Fourth Proportional to 6,419.10, 9,628.65 and 3,134.30

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Solution

The fourth proportional to 6,419.10, 9,628.65 and 3,134.30 is: 4,701.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,419.10 : 9,628.65 = 3,134.30 : x
  2. Step 2: Convert to fraction form
    6,419.10/9,628.65 = 3,134.30/x
  3. Step 3: Cross multiply
    6,419.10x = 9,628.65 × 3,134.30
  4. Step 4: Simplify right side
    6,419.10x = 30,179,077.70
  5. Step 5: Solve for x
    x = 30,179,077.70/6,419.10
  6. Step 6: Final answer
    x = 4,701.45

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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.