Home / 2,720.65-3,756.27-2,089.98

Finding the Fourth Proportional to 2,720.65, 3,756.27 and 2,089.98

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Solution

The fourth proportional to 2,720.65, 3,756.27 and 2,089.98 is: 2,885.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,720.65 : 3,756.27 = 2,089.98 : x
  2. Step 2: Convert to fraction form
    2,720.65/3,756.27 = 2,089.98/x
  3. Step 3: Cross multiply
    2,720.65x = 3,756.27 × 2,089.98
  4. Step 4: Simplify right side
    2,720.65x = 7,850,529.17
  5. Step 5: Solve for x
    x = 7,850,529.17/2,720.65
  6. Step 6: Final answer
    x = 2,885.53

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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.