Home / 2,867.49-3,955.92-1,804.86

Finding the Fourth Proportional to 2,867.49, 3,955.92 and 1,804.86

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Solution

The fourth proportional to 2,867.49, 3,955.92 and 1,804.86 is: 2,489.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,867.49 : 3,955.92 = 1,804.86 : x
  2. Step 2: Convert to fraction form
    2,867.49/3,955.92 = 1,804.86/x
  3. Step 3: Cross multiply
    2,867.49x = 3,955.92 × 1,804.86
  4. Step 4: Simplify right side
    2,867.49x = 7,139,881.77
  5. Step 5: Solve for x
    x = 7,139,881.77/2,867.49
  6. Step 6: Final answer
    x = 2,489.94

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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.