Home / 7,960.08-10,985.20-4,423.60

Finding the Fourth Proportional to 7,960.08, 10,985.20 and 4,423.60

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Solution

The fourth proportional to 7,960.08, 10,985.20 and 4,423.60 is: 6,104.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,960.08 : 10,985.20 = 4,423.60 : x
  2. Step 2: Convert to fraction form
    7,960.08/10,985.20 = 4,423.60/x
  3. Step 3: Cross multiply
    7,960.08x = 10,985.20 × 4,423.60
  4. Step 4: Simplify right side
    7,960.08x = 48,594,130.72
  5. Step 5: Solve for x
    x = 48,594,130.72/7,960.08
  6. Step 6: Final answer
    x = 6,104.73

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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.