Home / 1,917.06-2,642.55-1,603.36

Finding the Fourth Proportional to 1,917.06, 2,642.55 and 1,603.36

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Solution

The fourth proportional to 1,917.06, 2,642.55 and 1,603.36 is: 2,210.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,917.06 : 2,642.55 = 1,603.36 : x
  2. Step 2: Convert to fraction form
    1,917.06/2,642.55 = 1,603.36/x
  3. Step 3: Cross multiply
    1,917.06x = 2,642.55 × 1,603.36
  4. Step 4: Simplify right side
    1,917.06x = 4,236,950.95
  5. Step 5: Solve for x
    x = 4,236,950.95/1,917.06
  6. Step 6: Final answer
    x = 2,210.13

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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.