Home / 2,345.26-3,235.64-1,505.90

Finding the Fourth Proportional to 2,345.26, 3,235.64 and 1,505.90

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Solution

The fourth proportional to 2,345.26, 3,235.64 and 1,505.90 is: 2,077.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,345.26 : 3,235.64 = 1,505.90 : x
  2. Step 2: Convert to fraction form
    2,345.26/3,235.64 = 1,505.90/x
  3. Step 3: Cross multiply
    2,345.26x = 3,235.64 × 1,505.90
  4. Step 4: Simplify right side
    2,345.26x = 4,872,550.28
  5. Step 5: Solve for x
    x = 4,872,550.28/2,345.26
  6. Step 6: Final answer
    x = 2,077.62

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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.