Home / 3,036.12-4,187.80-1,855.14

Finding the Fourth Proportional to 3,036.12, 4,187.80 and 1,855.14

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Solution

The fourth proportional to 3,036.12, 4,187.80 and 1,855.14 is: 2,558.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,036.12 : 4,187.80 = 1,855.14 : x
  2. Step 2: Convert to fraction form
    3,036.12/4,187.80 = 1,855.14/x
  3. Step 3: Cross multiply
    3,036.12x = 4,187.80 × 1,855.14
  4. Step 4: Simplify right side
    3,036.12x = 7,768,955.29
  5. Step 5: Solve for x
    x = 7,768,955.29/3,036.12
  6. Step 6: Final answer
    x = 2,558.84

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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.