Home / 1,949.02-2,690.06-1,285.93

Finding the Fourth Proportional to 1,949.02, 2,690.06 and 1,285.93

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Solution

The fourth proportional to 1,949.02, 2,690.06 and 1,285.93 is: 1,774.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,949.02 : 2,690.06 = 1,285.93 : x
  2. Step 2: Convert to fraction form
    1,949.02/2,690.06 = 1,285.93/x
  3. Step 3: Cross multiply
    1,949.02x = 2,690.06 × 1,285.93
  4. Step 4: Simplify right side
    1,949.02x = 3,459,228.86
  5. Step 5: Solve for x
    x = 3,459,228.86/1,949.02
  6. Step 6: Final answer
    x = 1,774.86

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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.