Home / 2,720.16-3,758.85-2,055.87

Finding the Fourth Proportional to 2,720.16, 3,758.85 and 2,055.87

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Solution

The fourth proportional to 2,720.16, 3,758.85 and 2,055.87 is: 2,840.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,720.16 : 3,758.85 = 2,055.87 : x
  2. Step 2: Convert to fraction form
    2,720.16/3,758.85 = 2,055.87/x
  3. Step 3: Cross multiply
    2,720.16x = 3,758.85 × 2,055.87
  4. Step 4: Simplify right side
    2,720.16x = 7,727,706.95
  5. Step 5: Solve for x
    x = 7,727,706.95/2,720.16
  6. Step 6: Final answer
    x = 2,840.90

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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.