Home / 7,640.47-11,462.06-3,941.70

Finding the Fourth Proportional to 7,640.47, 11,462.06 and 3,941.70

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Solution

The fourth proportional to 7,640.47, 11,462.06 and 3,941.70 is: 5,913.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,640.47 : 11,462.06 = 3,941.70 : x
  2. Step 2: Convert to fraction form
    7,640.47/11,462.06 = 3,941.70/x
  3. Step 3: Cross multiply
    7,640.47x = 11,462.06 × 3,941.70
  4. Step 4: Simplify right side
    7,640.47x = 45,180,001.90
  5. Step 5: Solve for x
    x = 45,180,001.90/7,640.47
  6. Step 6: Final answer
    x = 5,913.25

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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.