Home / 4,665.12-6,980.64-2,809.44

Finding the Fourth Proportional to 4,665.12, 6,980.64 and 2,809.44

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Solution

The fourth proportional to 4,665.12, 6,980.64 and 2,809.44 is: 4,203.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,665.12 : 6,980.64 = 2,809.44 : x
  2. Step 2: Convert to fraction form
    4,665.12/6,980.64 = 2,809.44/x
  3. Step 3: Cross multiply
    4,665.12x = 6,980.64 × 2,809.44
  4. Step 4: Simplify right side
    4,665.12x = 19,611,689.24
  5. Step 5: Solve for x
    x = 19,611,689.24/4,665.12
  6. Step 6: Final answer
    x = 4,203.90

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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.