Home / 7,960.71-10,985.61-4,423.89

Finding the Fourth Proportional to 7,960.71, 10,985.61 and 4,423.89

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Solution

The fourth proportional to 7,960.71, 10,985.61 and 4,423.89 is: 6,104.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,960.71 : 10,985.61 = 4,423.89 : x
  2. Step 2: Convert to fraction form
    7,960.71/10,985.61 = 4,423.89/x
  3. Step 3: Cross multiply
    7,960.71x = 10,985.61 × 4,423.89
  4. Step 4: Simplify right side
    7,960.71x = 48,599,130.22
  5. Step 5: Solve for x
    x = 48,599,130.22/7,960.71
  6. Step 6: Final answer
    x = 6,104.87

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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.