Home / 2,664.80-3,675.84-2,074.40

Finding the Fourth Proportional to 2,664.80, 3,675.84 and 2,074.40

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Solution

The fourth proportional to 2,664.80, 3,675.84 and 2,074.40 is: 2,861.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,664.80 : 3,675.84 = 2,074.40 : x
  2. Step 2: Convert to fraction form
    2,664.80/3,675.84 = 2,074.40/x
  3. Step 3: Cross multiply
    2,664.80x = 3,675.84 × 2,074.40
  4. Step 4: Simplify right side
    2,664.80x = 7,625,162.50
  5. Step 5: Solve for x
    x = 7,625,162.50/2,664.80
  6. Step 6: Final answer
    x = 2,861.44

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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.