Home / 1,878.06-2,588.97-1,316.83

Finding the Fourth Proportional to 1,878.06, 2,588.97 and 1,316.83

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Solution

The fourth proportional to 1,878.06, 2,588.97 and 1,316.83 is: 1,815.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,878.06 : 2,588.97 = 1,316.83 : x
  2. Step 2: Convert to fraction form
    1,878.06/2,588.97 = 1,316.83/x
  3. Step 3: Cross multiply
    1,878.06x = 2,588.97 × 1,316.83
  4. Step 4: Simplify right side
    1,878.06x = 3,409,233.37
  5. Step 5: Solve for x
    x = 3,409,233.37/1,878.06
  6. Step 6: Final answer
    x = 1,815.30

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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.