Home / 1,970.36-2,718.60-1,184.12

Finding the Fourth Proportional to 1,970.36, 2,718.60 and 1,184.12

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Solution

The fourth proportional to 1,970.36, 2,718.60 and 1,184.12 is: 1,633.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,970.36 : 2,718.60 = 1,184.12 : x
  2. Step 2: Convert to fraction form
    1,970.36/2,718.60 = 1,184.12/x
  3. Step 3: Cross multiply
    1,970.36x = 2,718.60 × 1,184.12
  4. Step 4: Simplify right side
    1,970.36x = 3,219,148.63
  5. Step 5: Solve for x
    x = 3,219,148.63/1,970.36
  6. Step 6: Final answer
    x = 1,633.79

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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.