Home / 7,325.28-10,989.54-2,130.72

Finding the Fourth Proportional to 7,325.28, 10,989.54 and 2,130.72

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Solution

The fourth proportional to 7,325.28, 10,989.54 and 2,130.72 is: 3,196.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,325.28 : 10,989.54 = 2,130.72 : x
  2. Step 2: Convert to fraction form
    7,325.28/10,989.54 = 2,130.72/x
  3. Step 3: Cross multiply
    7,325.28x = 10,989.54 × 2,130.72
  4. Step 4: Simplify right side
    7,325.28x = 23,415,632.67
  5. Step 5: Solve for x
    x = 23,415,632.67/7,325.28
  6. Step 6: Final answer
    x = 3,196.55

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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.