Home / 7,640.21-10,544.49-4,615.47

Finding the Fourth Proportional to 7,640.21, 10,544.49 and 4,615.47

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Solution

The fourth proportional to 7,640.21, 10,544.49 and 4,615.47 is: 6,369.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,640.21 : 10,544.49 = 4,615.47 : x
  2. Step 2: Convert to fraction form
    7,640.21/10,544.49 = 4,615.47/x
  3. Step 3: Cross multiply
    7,640.21x = 10,544.49 × 4,615.47
  4. Step 4: Simplify right side
    7,640.21x = 48,667,777.26
  5. Step 5: Solve for x
    x = 48,667,777.26/7,640.21
  6. Step 6: Final answer
    x = 6,369.96

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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.