Home / 2,184.80-3,271.80-2,087.60

Finding the Fourth Proportional to 2,184.80, 3,271.80 and 2,087.60

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Solution

The fourth proportional to 2,184.80, 3,271.80 and 2,087.60 is: 3,126.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,184.80 : 3,271.80 = 2,087.60 : x
  2. Step 2: Convert to fraction form
    2,184.80/3,271.80 = 2,087.60/x
  3. Step 3: Cross multiply
    2,184.80x = 3,271.80 × 2,087.60
  4. Step 4: Simplify right side
    2,184.80x = 6,830,209.68
  5. Step 5: Solve for x
    x = 6,830,209.68/2,184.80
  6. Step 6: Final answer
    x = 3,126.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.