Home / 2,690.02-3,710.91-1,640.26

Finding the Fourth Proportional to 2,690.02, 3,710.91 and 1,640.26

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Solution

The fourth proportional to 2,690.02, 3,710.91 and 1,640.26 is: 2,262.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,690.02 : 3,710.91 = 1,640.26 : x
  2. Step 2: Convert to fraction form
    2,690.02/3,710.91 = 1,640.26/x
  3. Step 3: Cross multiply
    2,690.02x = 3,710.91 × 1,640.26
  4. Step 4: Simplify right side
    2,690.02x = 6,086,857.24
  5. Step 5: Solve for x
    x = 6,086,857.24/2,690.02
  6. Step 6: Final answer
    x = 2,262.76

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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.