Home / 2,715.23-3,747.42-1,720.60

Finding the Fourth Proportional to 2,715.23, 3,747.42 and 1,720.60

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Solution

The fourth proportional to 2,715.23, 3,747.42 and 1,720.60 is: 2,374.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,715.23 : 3,747.42 = 1,720.60 : x
  2. Step 2: Convert to fraction form
    2,715.23/3,747.42 = 1,720.60/x
  3. Step 3: Cross multiply
    2,715.23x = 3,747.42 × 1,720.60
  4. Step 4: Simplify right side
    2,715.23x = 6,447,795.03
  5. Step 5: Solve for x
    x = 6,447,795.03/2,715.23
  6. Step 6: Final answer
    x = 2,374.68

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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.