Home / 5,025.63-6,938.81-3,140.09

Finding the Fourth Proportional to 5,025.63, 6,938.81 and 3,140.09

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Solution

The fourth proportional to 5,025.63, 6,938.81 and 3,140.09 is: 4,335.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,025.63 : 6,938.81 = 3,140.09 : x
  2. Step 2: Convert to fraction form
    5,025.63/6,938.81 = 3,140.09/x
  3. Step 3: Cross multiply
    5,025.63x = 6,938.81 × 3,140.09
  4. Step 4: Simplify right side
    5,025.63x = 21,788,487.89
  5. Step 5: Solve for x
    x = 21,788,487.89/5,025.63
  6. Step 6: Final answer
    x = 4,335.47

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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.