Home / 2,977.99-4,109.33-1,719.45

Finding the Fourth Proportional to 2,977.99, 4,109.33 and 1,719.45

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Solution

The fourth proportional to 2,977.99, 4,109.33 and 1,719.45 is: 2,372.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,977.99 : 4,109.33 = 1,719.45 : x
  2. Step 2: Convert to fraction form
    2,977.99/4,109.33 = 1,719.45/x
  3. Step 3: Cross multiply
    2,977.99x = 4,109.33 × 1,719.45
  4. Step 4: Simplify right side
    2,977.99x = 7,065,787.47
  5. Step 5: Solve for x
    x = 7,065,787.47/2,977.99
  6. Step 6: Final answer
    x = 2,372.67

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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.