Home / 2,739.29-3,780.22-1,560.35

Finding the Fourth Proportional to 2,739.29, 3,780.22 and 1,560.35

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Solution

The fourth proportional to 2,739.29, 3,780.22 and 1,560.35 is: 2,153.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,739.29 : 3,780.22 = 1,560.35 : x
  2. Step 2: Convert to fraction form
    2,739.29/3,780.22 = 1,560.35/x
  3. Step 3: Cross multiply
    2,739.29x = 3,780.22 × 1,560.35
  4. Step 4: Simplify right side
    2,739.29x = 5,898,466.28
  5. Step 5: Solve for x
    x = 5,898,466.28/2,739.29
  6. Step 6: Final answer
    x = 2,153.28

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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.