Home / 4,260.60-6,390.90-3,953.40

Finding the Fourth Proportional to 4,260.60, 6,390.90 and 3,953.40

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Solution

The fourth proportional to 4,260.60, 6,390.90 and 3,953.40 is: 5,930.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,260.60 : 6,390.90 = 3,953.40 : x
  2. Step 2: Convert to fraction form
    4,260.60/6,390.90 = 3,953.40/x
  3. Step 3: Cross multiply
    4,260.60x = 6,390.90 × 3,953.40
  4. Step 4: Simplify right side
    4,260.60x = 25,265,784.06
  5. Step 5: Solve for x
    x = 25,265,784.06/4,260.60
  6. Step 6: Final answer
    x = 5,930.10

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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.