Home / 2,958.07-4,428.83-1,915.47

Finding the Fourth Proportional to 2,958.07, 4,428.83 and 1,915.47

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Solution

The fourth proportional to 2,958.07, 4,428.83 and 1,915.47 is: 2,867.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,958.07 : 4,428.83 = 1,915.47 : x
  2. Step 2: Convert to fraction form
    2,958.07/4,428.83 = 1,915.47/x
  3. Step 3: Cross multiply
    2,958.07x = 4,428.83 × 1,915.47
  4. Step 4: Simplify right side
    2,958.07x = 8,483,297.47
  5. Step 5: Solve for x
    x = 8,483,297.47/2,958.07
  6. Step 6: Final answer
    x = 2,867.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.