Home / 2,970.02-4,455.46-1,121.82

Finding the Fourth Proportional to 2,970.02, 4,455.46 and 1,121.82

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Solution

The fourth proportional to 2,970.02, 4,455.46 and 1,121.82 is: 1,682.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,970.02 : 4,455.46 = 1,121.82 : x
  2. Step 2: Convert to fraction form
    2,970.02/4,455.46 = 1,121.82/x
  3. Step 3: Cross multiply
    2,970.02x = 4,455.46 × 1,121.82
  4. Step 4: Simplify right side
    2,970.02x = 4,998,224.14
  5. Step 5: Solve for x
    x = 4,998,224.14/2,970.02
  6. Step 6: Final answer
    x = 1,682.89

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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.