Home / 1,955.08-2,928.54-1,172.60

Finding the Fourth Proportional to 1,955.08, 2,928.54 and 1,172.60

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Solution

The fourth proportional to 1,955.08, 2,928.54 and 1,172.60 is: 1,756.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,955.08 : 2,928.54 = 1,172.60 : x
  2. Step 2: Convert to fraction form
    1,955.08/2,928.54 = 1,172.60/x
  3. Step 3: Cross multiply
    1,955.08x = 2,928.54 × 1,172.60
  4. Step 4: Simplify right side
    1,955.08x = 3,434,006.00
  5. Step 5: Solve for x
    x = 3,434,006.00/1,955.08
  6. Step 6: Final answer
    x = 1,756.45

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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.