Home / 1,858.26-2,565.12-1,393.86

Finding the Fourth Proportional to 1,858.26, 2,565.12 and 1,393.86

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Solution

The fourth proportional to 1,858.26, 2,565.12 and 1,393.86 is: 1,924.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,858.26 : 2,565.12 = 1,393.86 : x
  2. Step 2: Convert to fraction form
    1,858.26/2,565.12 = 1,393.86/x
  3. Step 3: Cross multiply
    1,858.26x = 2,565.12 × 1,393.86
  4. Step 4: Simplify right side
    1,858.26x = 3,575,418.16
  5. Step 5: Solve for x
    x = 3,575,418.16/1,858.26
  6. Step 6: Final answer
    x = 1,924.07

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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.