Home / 4,889.60-7,335.64-1,969.84

Finding the Fourth Proportional to 4,889.60, 7,335.64 and 1,969.84

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Solution

The fourth proportional to 4,889.60, 7,335.64 and 1,969.84 is: 2,955.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,889.60 : 7,335.64 = 1,969.84 : x
  2. Step 2: Convert to fraction form
    4,889.60/7,335.64 = 1,969.84/x
  3. Step 3: Cross multiply
    4,889.60x = 7,335.64 × 1,969.84
  4. Step 4: Simplify right side
    4,889.60x = 14,450,037.10
  5. Step 5: Solve for x
    x = 14,450,037.10/4,889.60
  6. Step 6: Final answer
    x = 2,955.26

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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.