Home / 2,618.93-3,928.37-1,058.91

Finding the Fourth Proportional to 2,618.93, 3,928.37 and 1,058.91

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Solution

The fourth proportional to 2,618.93, 3,928.37 and 1,058.91 is: 1,588.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,618.93 : 3,928.37 = 1,058.91 : x
  2. Step 2: Convert to fraction form
    2,618.93/3,928.37 = 1,058.91/x
  3. Step 3: Cross multiply
    2,618.93x = 3,928.37 × 1,058.91
  4. Step 4: Simplify right side
    2,618.93x = 4,159,784.98
  5. Step 5: Solve for x
    x = 4,159,784.98/2,618.93
  6. Step 6: Final answer
    x = 1,588.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.