Home / 3,970.16-5,937.72-2,405.84

Finding the Fourth Proportional to 3,970.16, 5,937.72 and 2,405.84

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Solution

The fourth proportional to 3,970.16, 5,937.72 and 2,405.84 is: 3,598.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,970.16 : 5,937.72 = 2,405.84 : x
  2. Step 2: Convert to fraction form
    3,970.16/5,937.72 = 2,405.84/x
  3. Step 3: Cross multiply
    3,970.16x = 5,937.72 × 2,405.84
  4. Step 4: Simplify right side
    3,970.16x = 14,285,204.28
  5. Step 5: Solve for x
    x = 14,285,204.28/3,970.16
  6. Step 6: Final answer
    x = 3,598.14

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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.