Home / 7,289.40-10,928.10-3,132.60

Finding the Fourth Proportional to 7,289.40, 10,928.10 and 3,132.60

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Solution

The fourth proportional to 7,289.40, 10,928.10 and 3,132.60 is: 4,696.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,289.40 : 10,928.10 = 3,132.60 : x
  2. Step 2: Convert to fraction form
    7,289.40/10,928.10 = 3,132.60/x
  3. Step 3: Cross multiply
    7,289.40x = 10,928.10 × 3,132.60
  4. Step 4: Simplify right side
    7,289.40x = 34,233,366.06
  5. Step 5: Solve for x
    x = 34,233,366.06/7,289.40
  6. Step 6: Final answer
    x = 4,696.32

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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.