Home / 3,376.89-5,065.74-1,915.65

Finding the Fourth Proportional to 3,376.89, 5,065.74 and 1,915.65

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Solution

The fourth proportional to 3,376.89, 5,065.74 and 1,915.65 is: 2,873.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,376.89 : 5,065.74 = 1,915.65 : x
  2. Step 2: Convert to fraction form
    3,376.89/5,065.74 = 1,915.65/x
  3. Step 3: Cross multiply
    3,376.89x = 5,065.74 × 1,915.65
  4. Step 4: Simplify right side
    3,376.89x = 9,704,184.83
  5. Step 5: Solve for x
    x = 9,704,184.83/3,376.89
  6. Step 6: Final answer
    x = 2,873.70

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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.