Home / 2,085.18-3,126.96-698.24

Finding the Fourth Proportional to 2,085.18, 3,126.96 and 698.24

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Solution

The fourth proportional to 2,085.18, 3,126.96 and 698.24 is: 1,047.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,085.18 : 3,126.96 = 698.24 : x
  2. Step 2: Convert to fraction form
    2,085.18/3,126.96 = 698.24/x
  3. Step 3: Cross multiply
    2,085.18x = 3,126.96 × 698.24
  4. Step 4: Simplify right side
    2,085.18x = 2,183,368.55
  5. Step 5: Solve for x
    x = 2,183,368.55/2,085.18
  6. Step 6: Final answer
    x = 1,047.09

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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.