Home / 4,509.60-6,765.14-1,389.60

Finding the Fourth Proportional to 4,509.60, 6,765.14 and 1,389.60

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Solution

The fourth proportional to 4,509.60, 6,765.14 and 1,389.60 is: 2,084.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,509.60 : 6,765.14 = 1,389.60 : x
  2. Step 2: Convert to fraction form
    4,509.60/6,765.14 = 1,389.60/x
  3. Step 3: Cross multiply
    4,509.60x = 6,765.14 × 1,389.60
  4. Step 4: Simplify right side
    4,509.60x = 9,400,844.28
  5. Step 5: Solve for x
    x = 9,400,844.28/4,509.60
  6. Step 6: Final answer
    x = 2,084.63

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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.