Home / 1,975.59-2,726.28-1,276.98

Finding the Fourth Proportional to 1,975.59, 2,726.28 and 1,276.98

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Solution

The fourth proportional to 1,975.59, 2,726.28 and 1,276.98 is: 1,762.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,975.59 : 2,726.28 = 1,276.98 : x
  2. Step 2: Convert to fraction form
    1,975.59/2,726.28 = 1,276.98/x
  3. Step 3: Cross multiply
    1,975.59x = 2,726.28 × 1,276.98
  4. Step 4: Simplify right side
    1,975.59x = 3,481,405.03
  5. Step 5: Solve for x
    x = 3,481,405.03/1,975.59
  6. Step 6: Final answer
    x = 1,762.21

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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.