Home / 5,320.02-7,980.11-1,857.27

Finding the Fourth Proportional to 5,320.02, 7,980.11 and 1,857.27

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Solution

The fourth proportional to 5,320.02, 7,980.11 and 1,857.27 is: 2,785.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,320.02 : 7,980.11 = 1,857.27 : x
  2. Step 2: Convert to fraction form
    5,320.02/7,980.11 = 1,857.27/x
  3. Step 3: Cross multiply
    5,320.02x = 7,980.11 × 1,857.27
  4. Step 4: Simplify right side
    5,320.02x = 14,821,218.90
  5. Step 5: Solve for x
    x = 14,821,218.90/5,320.02
  6. Step 6: Final answer
    x = 2,785.93

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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.