Home / 1,975.02-2,725.42-1,228.96

Finding the Fourth Proportional to 1,975.02, 2,725.42 and 1,228.96

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Solution

The fourth proportional to 1,975.02, 2,725.42 and 1,228.96 is: 1,695.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,975.02 : 2,725.42 = 1,228.96 : x
  2. Step 2: Convert to fraction form
    1,975.02/2,725.42 = 1,228.96/x
  3. Step 3: Cross multiply
    1,975.02x = 2,725.42 × 1,228.96
  4. Step 4: Simplify right side
    1,975.02x = 3,349,432.16
  5. Step 5: Solve for x
    x = 3,349,432.16/1,975.02
  6. Step 6: Final answer
    x = 1,695.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.