Home / 1,315.63-1,973.05-1,083.94

Finding the Fourth Proportional to 1,315.63, 1,973.05 and 1,083.94

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Solution

The fourth proportional to 1,315.63, 1,973.05 and 1,083.94 is: 1,625.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315.63 : 1,973.05 = 1,083.94 : x
  2. Step 2: Convert to fraction form
    1,315.63/1,973.05 = 1,083.94/x
  3. Step 3: Cross multiply
    1,315.63x = 1,973.05 × 1,083.94
  4. Step 4: Simplify right side
    1,315.63x = 2,138,670.04
  5. Step 5: Solve for x
    x = 2,138,670.04/1,315.63
  6. Step 6: Final answer
    x = 1,625.59

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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.