Home / 4,395.20-6,065.40-2,405.78

Finding the Fourth Proportional to 4,395.20, 6,065.40 and 2,405.78

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Solution

The fourth proportional to 4,395.20, 6,065.40 and 2,405.78 is: 3,319.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,395.20 : 6,065.40 = 2,405.78 : x
  2. Step 2: Convert to fraction form
    4,395.20/6,065.40 = 2,405.78/x
  3. Step 3: Cross multiply
    4,395.20x = 6,065.40 × 2,405.78
  4. Step 4: Simplify right side
    4,395.20x = 14,592,018.01
  5. Step 5: Solve for x
    x = 14,592,018.01/4,395.20
  6. Step 6: Final answer
    x = 3,319.99

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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.