Home / 4,262.19-6,393.89-1,340.72

Finding the Fourth Proportional to 4,262.19, 6,393.89 and 1,340.72

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Solution

The fourth proportional to 4,262.19, 6,393.89 and 1,340.72 is: 2,011.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,262.19 : 6,393.89 = 1,340.72 : x
  2. Step 2: Convert to fraction form
    4,262.19/6,393.89 = 1,340.72/x
  3. Step 3: Cross multiply
    4,262.19x = 6,393.89 × 1,340.72
  4. Step 4: Simplify right side
    4,262.19x = 8,572,416.20
  5. Step 5: Solve for x
    x = 8,572,416.20/4,262.19
  6. Step 6: Final answer
    x = 2,011.27

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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.