Home / 7,760.08-10,708.60-4,223.28

Finding the Fourth Proportional to 7,760.08, 10,708.60 and 4,223.28

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Solution

The fourth proportional to 7,760.08, 10,708.60 and 4,223.28 is: 5,827.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,760.08 : 10,708.60 = 4,223.28 : x
  2. Step 2: Convert to fraction form
    7,760.08/10,708.60 = 4,223.28/x
  3. Step 3: Cross multiply
    7,760.08x = 10,708.60 × 4,223.28
  4. Step 4: Simplify right side
    7,760.08x = 45,225,416.21
  5. Step 5: Solve for x
    x = 45,225,416.21/7,760.08
  6. Step 6: Final answer
    x = 5,827.96

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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.