Home / 1,901.88-2,619.81-1,587.04

Finding the Fourth Proportional to 1,901.88, 2,619.81 and 1,587.04

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Solution

The fourth proportional to 1,901.88, 2,619.81 and 1,587.04 is: 2,186.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,901.88 : 2,619.81 = 1,587.04 : x
  2. Step 2: Convert to fraction form
    1,901.88/2,619.81 = 1,587.04/x
  3. Step 3: Cross multiply
    1,901.88x = 2,619.81 × 1,587.04
  4. Step 4: Simplify right side
    1,901.88x = 4,157,751.45
  5. Step 5: Solve for x
    x = 4,157,751.45/1,901.88
  6. Step 6: Final answer
    x = 2,186.13

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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.