Home / 2,642.07-3,642.74-1,696.19

Finding the Fourth Proportional to 2,642.07, 3,642.74 and 1,696.19

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Solution

The fourth proportional to 2,642.07, 3,642.74 and 1,696.19 is: 2,338.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,642.07 : 3,642.74 = 1,696.19 : x
  2. Step 2: Convert to fraction form
    2,642.07/3,642.74 = 1,696.19/x
  3. Step 3: Cross multiply
    2,642.07x = 3,642.74 × 1,696.19
  4. Step 4: Simplify right side
    2,642.07x = 6,178,779.16
  5. Step 5: Solve for x
    x = 6,178,779.16/2,642.07
  6. Step 6: Final answer
    x = 2,338.61

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1.5x scale

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.