Home / 1,890.70-2,607.06-1,293.29

Finding the Fourth Proportional to 1,890.70, 2,607.06 and 1,293.29

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Solution

The fourth proportional to 1,890.70, 2,607.06 and 1,293.29 is: 1,783.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,890.70 : 2,607.06 = 1,293.29 : x
  2. Step 2: Convert to fraction form
    1,890.70/2,607.06 = 1,293.29/x
  3. Step 3: Cross multiply
    1,890.70x = 2,607.06 × 1,293.29
  4. Step 4: Simplify right side
    1,890.70x = 3,371,678.16
  5. Step 5: Solve for x
    x = 3,371,678.16/1,890.70
  6. Step 6: Final answer
    x = 1,783.30

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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.