Home / 2,590.43-3,886.20-946.97

Finding the Fourth Proportional to 2,590.43, 3,886.20 and 946.97

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Solution

The fourth proportional to 2,590.43, 3,886.20 and 946.97 is: 1,420.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,590.43 : 3,886.20 = 946.97 : x
  2. Step 2: Convert to fraction form
    2,590.43/3,886.20 = 946.97/x
  3. Step 3: Cross multiply
    2,590.43x = 3,886.20 × 946.97
  4. Step 4: Simplify right side
    2,590.43x = 3,680,109.96
  5. Step 5: Solve for x
    x = 3,680,109.96/2,590.43
  6. Step 6: Final answer
    x = 1,420.66

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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.