Home / 2,277.09-3,143.06-1,491.20

Finding the Fourth Proportional to 2,277.09, 3,143.06 and 1,491.20

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Solution

The fourth proportional to 2,277.09, 3,143.06 and 1,491.20 is: 2,058.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,277.09 : 3,143.06 = 1,491.20 : x
  2. Step 2: Convert to fraction form
    2,277.09/3,143.06 = 1,491.20/x
  3. Step 3: Cross multiply
    2,277.09x = 3,143.06 × 1,491.20
  4. Step 4: Simplify right side
    2,277.09x = 4,686,907.90
  5. Step 5: Solve for x
    x = 4,686,907.90/2,277.09
  6. Step 6: Final answer
    x = 2,058.29

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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.