Home / 1,907.07-2,630.77-1,644.63

Finding the Fourth Proportional to 1,907.07, 2,630.77 and 1,644.63

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Solution

The fourth proportional to 1,907.07, 2,630.77 and 1,644.63 is: 2,268.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,907.07 : 2,630.77 = 1,644.63 : x
  2. Step 2: Convert to fraction form
    1,907.07/2,630.77 = 1,644.63/x
  3. Step 3: Cross multiply
    1,907.07x = 2,630.77 × 1,644.63
  4. Step 4: Simplify right side
    1,907.07x = 4,326,643.27
  5. Step 5: Solve for x
    x = 4,326,643.27/1,907.07
  6. Step 6: Final answer
    x = 2,268.74

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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.