Home / 5,898.78-8,140.31-3,540.92

Finding the Fourth Proportional to 5,898.78, 8,140.31 and 3,540.92

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Solution

The fourth proportional to 5,898.78, 8,140.31 and 3,540.92 is: 4,886.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,898.78 : 8,140.31 = 3,540.92 : x
  2. Step 2: Convert to fraction form
    5,898.78/8,140.31 = 3,540.92/x
  3. Step 3: Cross multiply
    5,898.78x = 8,140.31 × 3,540.92
  4. Step 4: Simplify right side
    5,898.78x = 28,824,128.08
  5. Step 5: Solve for x
    x = 28,824,128.08/5,898.78
  6. Step 6: Final answer
    x = 4,886.46

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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.