Home / 2,690.01-3,710.61-1,640.25

Finding the Fourth Proportional to 2,690.01, 3,710.61 and 1,640.25

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Solution

The fourth proportional to 2,690.01, 3,710.61 and 1,640.25 is: 2,262.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,690.01 : 3,710.61 = 1,640.25 : x
  2. Step 2: Convert to fraction form
    2,690.01/3,710.61 = 1,640.25/x
  3. Step 3: Cross multiply
    2,690.01x = 3,710.61 × 1,640.25
  4. Step 4: Simplify right side
    2,690.01x = 6,086,328.05
  5. Step 5: Solve for x
    x = 6,086,328.05/2,690.01
  6. Step 6: Final answer
    x = 2,262.57

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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.