Home / 1,417.32-1,953.15-1,083.80

Finding the Fourth Proportional to 1,417.32, 1,953.15 and 1,083.80

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Solution

The fourth proportional to 1,417.32, 1,953.15 and 1,083.80 is: 1,493.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,417.32 : 1,953.15 = 1,083.80 : x
  2. Step 2: Convert to fraction form
    1,417.32/1,953.15 = 1,083.80/x
  3. Step 3: Cross multiply
    1,417.32x = 1,953.15 × 1,083.80
  4. Step 4: Simplify right side
    1,417.32x = 2,116,823.97
  5. Step 5: Solve for x
    x = 2,116,823.97/1,417.32
  6. Step 6: Final answer
    x = 1,493.54

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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.