Home / 3,281.81-4,528.31-1,955.48

Finding the Fourth Proportional to 3,281.81, 4,528.31 and 1,955.48

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Solution

The fourth proportional to 3,281.81, 4,528.31 and 1,955.48 is: 2,698.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,281.81 : 4,528.31 = 1,955.48 : x
  2. Step 2: Convert to fraction form
    3,281.81/4,528.31 = 1,955.48/x
  3. Step 3: Cross multiply
    3,281.81x = 4,528.31 × 1,955.48
  4. Step 4: Simplify right side
    3,281.81x = 8,854,987.22
  5. Step 5: Solve for x
    x = 8,854,987.22/3,281.81
  6. Step 6: Final answer
    x = 2,698.21

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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.