Home / 4,878.63-7,312.39-2,065.71

Finding the Fourth Proportional to 4,878.63, 7,312.39 and 2,065.71

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Solution

The fourth proportional to 4,878.63, 7,312.39 and 2,065.71 is: 3,096.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,878.63 : 7,312.39 = 2,065.71 : x
  2. Step 2: Convert to fraction form
    4,878.63/7,312.39 = 2,065.71/x
  3. Step 3: Cross multiply
    4,878.63x = 7,312.39 × 2,065.71
  4. Step 4: Simplify right side
    4,878.63x = 15,105,271.98
  5. Step 5: Solve for x
    x = 15,105,271.98/4,878.63
  6. Step 6: Final answer
    x = 3,096.21

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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.