Home / 2,911.95-4,361.14-2,130

Finding the Fourth Proportional to 2,911.95, 4,361.14 and 2,130

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Solution

The fourth proportional to 2,911.95, 4,361.14 and 2,130 is: 3,190.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,911.95 : 4,361.14 = 2,130 : x
  2. Step 2: Convert to fraction form
    2,911.95/4,361.14 = 2,130/x
  3. Step 3: Cross multiply
    2,911.95x = 4,361.14 × 2,130
  4. Step 4: Simplify right side
    2,911.95x = 9,289,228.20
  5. Step 5: Solve for x
    x = 9,289,228.20/2,911.95
  6. Step 6: Final answer
    x = 3,190.04

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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.