Home / 1,905.69-2,629.08-1,159.05

Finding the Fourth Proportional to 1,905.69, 2,629.08 and 1,159.05

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Solution

The fourth proportional to 1,905.69, 2,629.08 and 1,159.05 is: 1,599.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,905.69 : 2,629.08 = 1,159.05 : x
  2. Step 2: Convert to fraction form
    1,905.69/2,629.08 = 1,159.05/x
  3. Step 3: Cross multiply
    1,905.69x = 2,629.08 × 1,159.05
  4. Step 4: Simplify right side
    1,905.69x = 3,047,235.17
  5. Step 5: Solve for x
    x = 3,047,235.17/1,905.69
  6. Step 6: Final answer
    x = 1,599.02

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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.