Home / 1,943.90-2,682.60-1,158.02

Finding the Fourth Proportional to 1,943.90, 2,682.60 and 1,158.02

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Solution

The fourth proportional to 1,943.90, 2,682.60 and 1,158.02 is: 1,598.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,943.90 : 2,682.60 = 1,158.02 : x
  2. Step 2: Convert to fraction form
    1,943.90/2,682.60 = 1,158.02/x
  3. Step 3: Cross multiply
    1,943.90x = 2,682.60 × 1,158.02
  4. Step 4: Simplify right side
    1,943.90x = 3,106,504.45
  5. Step 5: Solve for x
    x = 3,106,504.45/1,943.90
  6. Step 6: Final answer
    x = 1,598.08

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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.