Home / 1,558.91-2,331.48-1,386.79

Finding the Fourth Proportional to 1,558.91, 2,331.48 and 1,386.79

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Solution

The fourth proportional to 1,558.91, 2,331.48 and 1,386.79 is: 2,074.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,558.91 : 2,331.48 = 1,386.79 : x
  2. Step 2: Convert to fraction form
    1,558.91/2,331.48 = 1,386.79/x
  3. Step 3: Cross multiply
    1,558.91x = 2,331.48 × 1,386.79
  4. Step 4: Simplify right side
    1,558.91x = 3,233,272.52
  5. Step 5: Solve for x
    x = 3,233,272.52/1,558.91
  6. Step 6: Final answer
    x = 2,074.06

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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.