Home / 7,929.42-10,942.47-4,392.60

Finding the Fourth Proportional to 7,929.42, 10,942.47 and 4,392.60

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Solution

The fourth proportional to 7,929.42, 10,942.47 and 4,392.60 is: 6,061.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,929.42 : 10,942.47 = 4,392.60 : x
  2. Step 2: Convert to fraction form
    7,929.42/10,942.47 = 4,392.60/x
  3. Step 3: Cross multiply
    7,929.42x = 10,942.47 × 4,392.60
  4. Step 4: Simplify right side
    7,929.42x = 48,065,893.72
  5. Step 5: Solve for x
    x = 48,065,893.72/7,929.42
  6. Step 6: Final answer
    x = 6,061.72

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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.