Home / 3,281.09-4,528.40-2,087.06

Finding the Fourth Proportional to 3,281.09, 4,528.40 and 2,087.06

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Solution

The fourth proportional to 3,281.09, 4,528.40 and 2,087.06 is: 2,880.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,281.09 : 4,528.40 = 2,087.06 : x
  2. Step 2: Convert to fraction form
    3,281.09/4,528.40 = 2,087.06/x
  3. Step 3: Cross multiply
    3,281.09x = 4,528.40 × 2,087.06
  4. Step 4: Simplify right side
    3,281.09x = 9,451,009.43
  5. Step 5: Solve for x
    x = 9,451,009.43/3,281.09
  6. Step 6: Final answer
    x = 2,880.45

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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.