Home / 2,270.95-3,133.69-1,386.57

Finding the Fourth Proportional to 2,270.95, 3,133.69 and 1,386.57

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Solution

The fourth proportional to 2,270.95, 3,133.69 and 1,386.57 is: 1,913.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,270.95 : 3,133.69 = 1,386.57 : x
  2. Step 2: Convert to fraction form
    2,270.95/3,133.69 = 1,386.57/x
  3. Step 3: Cross multiply
    2,270.95x = 3,133.69 × 1,386.57
  4. Step 4: Simplify right side
    2,270.95x = 4,345,080.54
  5. Step 5: Solve for x
    x = 4,345,080.54/2,270.95
  6. Step 6: Final answer
    x = 1,913.33

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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.