Home / 2,071.65-2,858.58-1,285.41

Finding the Fourth Proportional to 2,071.65, 2,858.58 and 1,285.41

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Solution

The fourth proportional to 2,071.65, 2,858.58 and 1,285.41 is: 1,773.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,071.65 : 2,858.58 = 1,285.41 : x
  2. Step 2: Convert to fraction form
    2,071.65/2,858.58 = 1,285.41/x
  3. Step 3: Cross multiply
    2,071.65x = 2,858.58 × 1,285.41
  4. Step 4: Simplify right side
    2,071.65x = 3,674,447.32
  5. Step 5: Solve for x
    x = 3,674,447.32/2,071.65
  6. Step 6: Final answer
    x = 1,773.68

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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.