Home / 7,929.65-10,942.20-4,742.33

Finding the Fourth Proportional to 7,929.65, 10,942.20 and 4,742.33

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Solution

The fourth proportional to 7,929.65, 10,942.20 and 4,742.33 is: 6,543.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,929.65 : 10,942.20 = 4,742.33 : x
  2. Step 2: Convert to fraction form
    7,929.65/10,942.20 = 4,742.33/x
  3. Step 3: Cross multiply
    7,929.65x = 10,942.20 × 4,742.33
  4. Step 4: Simplify right side
    7,929.65x = 51,891,468.62
  5. Step 5: Solve for x
    x = 51,891,468.62/7,929.65
  6. Step 6: Final answer
    x = 6,543.98

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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.