Home / 2,565.45-3,539.06-1,620.79

Finding the Fourth Proportional to 2,565.45, 3,539.06 and 1,620.79

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Solution

The fourth proportional to 2,565.45, 3,539.06 and 1,620.79 is: 2,235.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,565.45 : 3,539.06 = 1,620.79 : x
  2. Step 2: Convert to fraction form
    2,565.45/3,539.06 = 1,620.79/x
  3. Step 3: Cross multiply
    2,565.45x = 3,539.06 × 1,620.79
  4. Step 4: Simplify right side
    2,565.45x = 5,736,068.26
  5. Step 5: Solve for x
    x = 5,736,068.26/2,565.45
  6. Step 6: Final answer
    x = 2,235.89

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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.