Home / 3,070.95-4,237.88-1,812

Finding the Fourth Proportional to 3,070.95, 4,237.88 and 1,812

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Solution

The fourth proportional to 3,070.95, 4,237.88 and 1,812 is: 2,500.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,070.95 : 4,237.88 = 1,812 : x
  2. Step 2: Convert to fraction form
    3,070.95/4,237.88 = 1,812/x
  3. Step 3: Cross multiply
    3,070.95x = 4,237.88 × 1,812
  4. Step 4: Simplify right side
    3,070.95x = 7,679,029.50
  5. Step 5: Solve for x
    x = 7,679,029.50/3,070.95
  6. Step 6: Final answer
    x = 2,500.54

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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.