Home / 2,739.93-3,781.38-1,561.24

Finding the Fourth Proportional to 2,739.93, 3,781.38 and 1,561.24

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Solution

The fourth proportional to 2,739.93, 3,781.38 and 1,561.24 is: 2,154.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,739.93 : 3,781.38 = 1,561.24 : x
  2. Step 2: Convert to fraction form
    2,739.93/3,781.38 = 1,561.24/x
  3. Step 3: Cross multiply
    2,739.93x = 3,781.38 × 1,561.24
  4. Step 4: Simplify right side
    2,739.93x = 5,903,641.71
  5. Step 5: Solve for x
    x = 5,903,641.71/2,739.93
  6. Step 6: Final answer
    x = 2,154.67

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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.