Home / 3,439.74-5,159.62-1,590.31

Finding the Fourth Proportional to 3,439.74, 5,159.62 and 1,590.31

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Solution

The fourth proportional to 3,439.74, 5,159.62 and 1,590.31 is: 2,385.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,439.74 : 5,159.62 = 1,590.31 : x
  2. Step 2: Convert to fraction form
    3,439.74/5,159.62 = 1,590.31/x
  3. Step 3: Cross multiply
    3,439.74x = 5,159.62 × 1,590.31
  4. Step 4: Simplify right side
    3,439.74x = 8,205,403.72
  5. Step 5: Solve for x
    x = 8,205,403.72/3,439.74
  6. Step 6: Final answer
    x = 2,385.47

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1.5x scale

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.