Home / 1,969.19-2,705.32-1,762.11

Finding the Fourth Proportional to 1,969.19, 2,705.32 and 1,762.11

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Solution

The fourth proportional to 1,969.19, 2,705.32 and 1,762.11 is: 2,420.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,969.19 : 2,705.32 = 1,762.11 : x
  2. Step 2: Convert to fraction form
    1,969.19/2,705.32 = 1,762.11/x
  3. Step 3: Cross multiply
    1,969.19x = 2,705.32 × 1,762.11
  4. Step 4: Simplify right side
    1,969.19x = 4,767,071.43
  5. Step 5: Solve for x
    x = 4,767,071.43/1,969.19
  6. Step 6: Final answer
    x = 2,420.83

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.