Home / 3,681.07-5,080.58-2,419.90

Finding the Fourth Proportional to 3,681.07, 5,080.58 and 2,419.90

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Solution

The fourth proportional to 3,681.07, 5,080.58 and 2,419.90 is: 3,339.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,681.07 : 5,080.58 = 2,419.90 : x
  2. Step 2: Convert to fraction form
    3,681.07/5,080.58 = 2,419.90/x
  3. Step 3: Cross multiply
    3,681.07x = 5,080.58 × 2,419.90
  4. Step 4: Simplify right side
    3,681.07x = 12,294,495.54
  5. Step 5: Solve for x
    x = 12,294,495.54/3,681.07
  6. Step 6: Final answer
    x = 3,339.92

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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.