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Finding the Fourth Proportional to 7,133.60, 10,695.60 and 3,802.40

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Solution

The fourth proportional to 7,133.60, 10,695.60 and 3,802.40 is: 5,701.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,133.60 : 10,695.60 = 3,802.40 : x
  2. Step 2: Convert to fraction form
    7,133.60/10,695.60 = 3,802.40/x
  3. Step 3: Cross multiply
    7,133.60x = 10,695.60 × 3,802.40
  4. Step 4: Simplify right side
    7,133.60x = 40,668,949.44
  5. Step 5: Solve for x
    x = 40,668,949.44/7,133.60
  6. Step 6: Final answer
    x = 5,701.04

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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.