Home / 2,715.30-3,745.53-1,718.85

Finding the Fourth Proportional to 2,715.30, 3,745.53 and 1,718.85

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Solution

The fourth proportional to 2,715.30, 3,745.53 and 1,718.85 is: 2,371.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,715.30 : 3,745.53 = 1,718.85 : x
  2. Step 2: Convert to fraction form
    2,715.30/3,745.53 = 1,718.85/x
  3. Step 3: Cross multiply
    2,715.30x = 3,745.53 × 1,718.85
  4. Step 4: Simplify right side
    2,715.30x = 6,438,004.24
  5. Step 5: Solve for x
    x = 6,438,004.24/2,715.30
  6. Step 6: Final answer
    x = 2,371.01

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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.