Home / 1,955.60-2,698.73-1,071.39

Finding the Fourth Proportional to 1,955.60, 2,698.73 and 1,071.39

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Solution

The fourth proportional to 1,955.60, 2,698.73 and 1,071.39 is: 1,478.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,955.60 : 2,698.73 = 1,071.39 : x
  2. Step 2: Convert to fraction form
    1,955.60/2,698.73 = 1,071.39/x
  3. Step 3: Cross multiply
    1,955.60x = 2,698.73 × 1,071.39
  4. Step 4: Simplify right side
    1,955.60x = 2,891,386.98
  5. Step 5: Solve for x
    x = 2,891,386.98/1,955.60
  6. Step 6: Final answer
    x = 1,478.52

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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.