Home / 5,632.47-7,767.79-3,640.93

Finding the Fourth Proportional to 5,632.47, 7,767.79 and 3,640.93

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Solution

The fourth proportional to 5,632.47, 7,767.79 and 3,640.93 is: 5,021.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,632.47 : 7,767.79 = 3,640.93 : x
  2. Step 2: Convert to fraction form
    5,632.47/7,767.79 = 3,640.93/x
  3. Step 3: Cross multiply
    5,632.47x = 7,767.79 × 3,640.93
  4. Step 4: Simplify right side
    5,632.47x = 28,281,951.12
  5. Step 5: Solve for x
    x = 28,281,951.12/5,632.47
  6. Step 6: Final answer
    x = 5,021.23

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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.