Home / 1,764.19-2,639.76-1,071.37

Finding the Fourth Proportional to 1,764.19, 2,639.76 and 1,071.37

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Solution

The fourth proportional to 1,764.19, 2,639.76 and 1,071.37 is: 1,603.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,764.19 : 2,639.76 = 1,071.37 : x
  2. Step 2: Convert to fraction form
    1,764.19/2,639.76 = 1,071.37/x
  3. Step 3: Cross multiply
    1,764.19x = 2,639.76 × 1,071.37
  4. Step 4: Simplify right side
    1,764.19x = 2,828,159.67
  5. Step 5: Solve for x
    x = 2,828,159.67/1,764.19
  6. Step 6: Final answer
    x = 1,603.09

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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.