Home / 1,980.02-2,732.43-1,194.08

Finding the Fourth Proportional to 1,980.02, 2,732.43 and 1,194.08

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Solution

The fourth proportional to 1,980.02, 2,732.43 and 1,194.08 is: 1,647.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,980.02 : 2,732.43 = 1,194.08 : x
  2. Step 2: Convert to fraction form
    1,980.02/2,732.43 = 1,194.08/x
  3. Step 3: Cross multiply
    1,980.02x = 2,732.43 × 1,194.08
  4. Step 4: Simplify right side
    1,980.02x = 3,262,740.01
  5. Step 5: Solve for x
    x = 3,262,740.01/1,980.02
  6. Step 6: Final answer
    x = 1,647.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.