Home / 1,247.24-1,868.30-1,015.08

Finding the Fourth Proportional to 1,247.24, 1,868.30 and 1,015.08

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Solution

The fourth proportional to 1,247.24, 1,868.30 and 1,015.08 is: 1,520.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247.24 : 1,868.30 = 1,015.08 : x
  2. Step 2: Convert to fraction form
    1,247.24/1,868.30 = 1,015.08/x
  3. Step 3: Cross multiply
    1,247.24x = 1,868.30 × 1,015.08
  4. Step 4: Simplify right side
    1,247.24x = 1,896,473.96
  5. Step 5: Solve for x
    x = 1,896,473.96/1,247.24
  6. Step 6: Final answer
    x = 1,520.54

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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.