Home / 2,389.99-3,580.33-1,565.77

Finding the Fourth Proportional to 2,389.99, 3,580.33 and 1,565.77

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Solution

The fourth proportional to 2,389.99, 3,580.33 and 1,565.77 is: 2,345.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,389.99 : 3,580.33 = 1,565.77 : x
  2. Step 2: Convert to fraction form
    2,389.99/3,580.33 = 1,565.77/x
  3. Step 3: Cross multiply
    2,389.99x = 3,580.33 × 1,565.77
  4. Step 4: Simplify right side
    2,389.99x = 5,605,973.30
  5. Step 5: Solve for x
    x = 5,605,973.30/2,389.99
  6. Step 6: Final answer
    x = 2,345.61

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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.