Home / 1,948.47-2,922.63-1,071.39

Finding the Fourth Proportional to 1,948.47, 2,922.63 and 1,071.39

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Solution

The fourth proportional to 1,948.47, 2,922.63 and 1,071.39 is: 1,607.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,948.47 : 2,922.63 = 1,071.39 : x
  2. Step 2: Convert to fraction form
    1,948.47/2,922.63 = 1,071.39/x
  3. Step 3: Cross multiply
    1,948.47x = 2,922.63 × 1,071.39
  4. Step 4: Simplify right side
    1,948.47x = 3,131,276.56
  5. Step 5: Solve for x
    x = 3,131,276.56/1,948.47
  6. Step 6: Final answer
    x = 1,607.04

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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.