Home / 2,739.86-3,780.09-1,560.68

Finding the Fourth Proportional to 2,739.86, 3,780.09 and 1,560.68

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Solution

The fourth proportional to 2,739.86, 3,780.09 and 1,560.68 is: 2,153.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,739.86 : 3,780.09 = 1,560.68 : x
  2. Step 2: Convert to fraction form
    2,739.86/3,780.09 = 1,560.68/x
  3. Step 3: Cross multiply
    2,739.86x = 3,780.09 × 1,560.68
  4. Step 4: Simplify right side
    2,739.86x = 5,899,510.86
  5. Step 5: Solve for x
    x = 5,899,510.86/2,739.86
  6. Step 6: Final answer
    x = 2,153.22

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1.5x scale

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.