Home / 7,283.60-10,927.20-3,121.64

Finding the Fourth Proportional to 7,283.60, 10,927.20 and 3,121.64

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Solution

The fourth proportional to 7,283.60, 10,927.20 and 3,121.64 is: 4,683.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,283.60 : 10,927.20 = 3,121.64 : x
  2. Step 2: Convert to fraction form
    7,283.60/10,927.20 = 3,121.64/x
  3. Step 3: Cross multiply
    7,283.60x = 10,927.20 × 3,121.64
  4. Step 4: Simplify right side
    7,283.60x = 34,110,784.61
  5. Step 5: Solve for x
    x = 34,110,784.61/7,283.60
  6. Step 6: Final answer
    x = 4,683.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.