Home / 1,975.04-2,725.80-1,275.92

Finding the Fourth Proportional to 1,975.04, 2,725.80 and 1,275.92

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Solution

The fourth proportional to 1,975.04, 2,725.80 and 1,275.92 is: 1,760.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,975.04 : 2,725.80 = 1,275.92 : x
  2. Step 2: Convert to fraction form
    1,975.04/2,725.80 = 1,275.92/x
  3. Step 3: Cross multiply
    1,975.04x = 2,725.80 × 1,275.92
  4. Step 4: Simplify right side
    1,975.04x = 3,477,902.74
  5. Step 5: Solve for x
    x = 3,477,902.74/1,975.04
  6. Step 6: Final answer
    x = 1,760.93

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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.