Home / 7,925.28-11,880.60-3,540.34

Finding the Fourth Proportional to 7,925.28, 11,880.60 and 3,540.34

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Solution

The fourth proportional to 7,925.28, 11,880.60 and 3,540.34 is: 5,307.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,925.28 : 11,880.60 = 3,540.34 : x
  2. Step 2: Convert to fraction form
    7,925.28/11,880.60 = 3,540.34/x
  3. Step 3: Cross multiply
    7,925.28x = 11,880.60 × 3,540.34
  4. Step 4: Simplify right side
    7,925.28x = 42,061,363.40
  5. Step 5: Solve for x
    x = 42,061,363.40/7,925.28
  6. Step 6: Final answer
    x = 5,307.24

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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.