Home / 7,960.98-10,985.12-4,423.51

Finding the Fourth Proportional to 7,960.98, 10,985.12 and 4,423.51

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Solution

The fourth proportional to 7,960.98, 10,985.12 and 4,423.51 is: 6,103.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,960.98 : 10,985.12 = 4,423.51 : x
  2. Step 2: Convert to fraction form
    7,960.98/10,985.12 = 4,423.51/x
  3. Step 3: Cross multiply
    7,960.98x = 10,985.12 × 4,423.51
  4. Step 4: Simplify right side
    7,960.98x = 48,592,796.37
  5. Step 5: Solve for x
    x = 48,592,796.37/7,960.98
  6. Step 6: Final answer
    x = 6,103.87

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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.