Home / 2,587.70-3,569.34-1,789.64

Finding the Fourth Proportional to 2,587.70, 3,569.34 and 1,789.64

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Solution

The fourth proportional to 2,587.70, 3,569.34 and 1,789.64 is: 2,468.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,587.70 : 3,569.34 = 1,789.64 : x
  2. Step 2: Convert to fraction form
    2,587.70/3,569.34 = 1,789.64/x
  3. Step 3: Cross multiply
    2,587.70x = 3,569.34 × 1,789.64
  4. Step 4: Simplify right side
    2,587.70x = 6,387,833.64
  5. Step 5: Solve for x
    x = 6,387,833.64/2,587.70
  6. Step 6: Final answer
    x = 2,468.54

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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.