Home / 2,155.19-3,232.01-693.95

Finding the Fourth Proportional to 2,155.19, 3,232.01 and 693.95

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Solution

The fourth proportional to 2,155.19, 3,232.01 and 693.95 is: 1,040.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,155.19 : 3,232.01 = 693.95 : x
  2. Step 2: Convert to fraction form
    2,155.19/3,232.01 = 693.95/x
  3. Step 3: Cross multiply
    2,155.19x = 3,232.01 × 693.95
  4. Step 4: Simplify right side
    2,155.19x = 2,242,838.91
  5. Step 5: Solve for x
    x = 2,242,838.91/2,155.19
  6. Step 6: Final answer
    x = 1,040.67

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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.