Home / 7,723.60-11,585.28-1,880.16

Finding the Fourth Proportional to 7,723.60, 11,585.28 and 1,880.16

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Solution

The fourth proportional to 7,723.60, 11,585.28 and 1,880.16 is: 2,820.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,723.60 : 11,585.28 = 1,880.16 : x
  2. Step 2: Convert to fraction form
    7,723.60/11,585.28 = 1,880.16/x
  3. Step 3: Cross multiply
    7,723.60x = 11,585.28 × 1,880.16
  4. Step 4: Simplify right side
    7,723.60x = 21,782,180.04
  5. Step 5: Solve for x
    x = 21,782,180.04/7,723.60
  6. Step 6: Final answer
    x = 2,820.21

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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.