Home / 3,681.45-5,077.01-2,739.58

Finding the Fourth Proportional to 3,681.45, 5,077.01 and 2,739.58

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Solution

The fourth proportional to 3,681.45, 5,077.01 and 2,739.58 is: 3,778.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,681.45 : 5,077.01 = 2,739.58 : x
  2. Step 2: Convert to fraction form
    3,681.45/5,077.01 = 2,739.58/x
  3. Step 3: Cross multiply
    3,681.45x = 5,077.01 × 2,739.58
  4. Step 4: Simplify right side
    3,681.45x = 13,908,869.21
  5. Step 5: Solve for x
    x = 13,908,869.21/3,681.45
  6. Step 6: Final answer
    x = 3,778.10

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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.