Home / 7,225.79-10,840.86-5,121.48

Finding the Fourth Proportional to 7,225.79, 10,840.86 and 5,121.48

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Solution

The fourth proportional to 7,225.79, 10,840.86 and 5,121.48 is: 7,683.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,225.79 : 10,840.86 = 5,121.48 : x
  2. Step 2: Convert to fraction form
    7,225.79/10,840.86 = 5,121.48/x
  3. Step 3: Cross multiply
    7,225.79x = 10,840.86 × 5,121.48
  4. Step 4: Simplify right side
    7,225.79x = 55,521,247.67
  5. Step 5: Solve for x
    x = 55,521,247.67/7,225.79
  6. Step 6: Final answer
    x = 7,683.77

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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.