Home / 2,558.95-3,531.09-1,439.71

Finding the Fourth Proportional to 2,558.95, 3,531.09 and 1,439.71

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Solution

The fourth proportional to 2,558.95, 3,531.09 and 1,439.71 is: 1,986.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,558.95 : 3,531.09 = 1,439.71 : x
  2. Step 2: Convert to fraction form
    2,558.95/3,531.09 = 1,439.71/x
  3. Step 3: Cross multiply
    2,558.95x = 3,531.09 × 1,439.71
  4. Step 4: Simplify right side
    2,558.95x = 5,083,745.58
  5. Step 5: Solve for x
    x = 5,083,745.58/2,558.95
  6. Step 6: Final answer
    x = 1,986.65

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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.