Home / 2,878.37-4,315.70-1,376.76

Finding the Fourth Proportional to 2,878.37, 4,315.70 and 1,376.76

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Solution

The fourth proportional to 2,878.37, 4,315.70 and 1,376.76 is: 2,064.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,878.37 : 4,315.70 = 1,376.76 : x
  2. Step 2: Convert to fraction form
    2,878.37/4,315.70 = 1,376.76/x
  3. Step 3: Cross multiply
    2,878.37x = 4,315.70 × 1,376.76
  4. Step 4: Simplify right side
    2,878.37x = 5,941,676.25
  5. Step 5: Solve for x
    x = 5,941,676.25/2,878.37
  6. Step 6: Final answer
    x = 2,064.25

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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.