Home / 4,256.79-5,872.70-3,140.42

Finding the Fourth Proportional to 4,256.79, 5,872.70 and 3,140.42

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Solution

The fourth proportional to 4,256.79, 5,872.70 and 3,140.42 is: 4,332.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,256.79 : 5,872.70 = 3,140.42 : x
  2. Step 2: Convert to fraction form
    4,256.79/5,872.70 = 3,140.42/x
  3. Step 3: Cross multiply
    4,256.79x = 5,872.70 × 3,140.42
  4. Step 4: Simplify right side
    4,256.79x = 18,442,699.47
  5. Step 5: Solve for x
    x = 18,442,699.47/4,256.79
  6. Step 6: Final answer
    x = 4,332.54

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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.