Home / 4,399.47-6,598.49-1,320.75

Finding the Fourth Proportional to 4,399.47, 6,598.49 and 1,320.75

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Solution

The fourth proportional to 4,399.47, 6,598.49 and 1,320.75 is: 1,980.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,399.47 : 6,598.49 = 1,320.75 : x
  2. Step 2: Convert to fraction form
    4,399.47/6,598.49 = 1,320.75/x
  3. Step 3: Cross multiply
    4,399.47x = 6,598.49 × 1,320.75
  4. Step 4: Simplify right side
    4,399.47x = 8,714,949.06
  5. Step 5: Solve for x
    x = 8,714,949.06/4,399.47
  6. Step 6: Final answer
    x = 1,980.91

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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.