Home / 2,273.07-3,136.81-1,278.35

Finding the Fourth Proportional to 2,273.07, 3,136.81 and 1,278.35

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Solution

The fourth proportional to 2,273.07, 3,136.81 and 1,278.35 is: 1,764.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,273.07 : 3,136.81 = 1,278.35 : x
  2. Step 2: Convert to fraction form
    2,273.07/3,136.81 = 1,278.35/x
  3. Step 3: Cross multiply
    2,273.07x = 3,136.81 × 1,278.35
  4. Step 4: Simplify right side
    2,273.07x = 4,009,941.06
  5. Step 5: Solve for x
    x = 4,009,941.06/2,273.07
  6. Step 6: Final answer
    x = 1,764.11

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1.5x scale

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.