Home / 1,984.65-2,741.16-1,320.32

Finding the Fourth Proportional to 1,984.65, 2,741.16 and 1,320.32

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Solution

The fourth proportional to 1,984.65, 2,741.16 and 1,320.32 is: 1,823.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,984.65 : 2,741.16 = 1,320.32 : x
  2. Step 2: Convert to fraction form
    1,984.65/2,741.16 = 1,320.32/x
  3. Step 3: Cross multiply
    1,984.65x = 2,741.16 × 1,320.32
  4. Step 4: Simplify right side
    1,984.65x = 3,619,194.67
  5. Step 5: Solve for x
    x = 3,619,194.67/1,984.65
  6. Step 6: Final answer
    x = 1,823.59

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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.