Home / 2,739.04-3,780-1,560.16

Finding the Fourth Proportional to 2,739.04, 3,780 and 1,560.16

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Solution

The fourth proportional to 2,739.04, 3,780 and 1,560.16 is: 2,153.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,739.04 : 3,780 = 1,560.16 : x
  2. Step 2: Convert to fraction form
    2,739.04/3,780 = 1,560.16/x
  3. Step 3: Cross multiply
    2,739.04x = 3,780 × 1,560.16
  4. Step 4: Simplify right side
    2,739.04x = 5,897,404.80
  5. Step 5: Solve for x
    x = 5,897,404.80/2,739.04
  6. Step 6: Final answer
    x = 2,153.09

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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.