Home / 1,921.17-2,877.19-1,225.67

Finding the Fourth Proportional to 1,921.17, 2,877.19 and 1,225.67

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Solution

The fourth proportional to 1,921.17, 2,877.19 and 1,225.67 is: 1,835.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,921.17 : 2,877.19 = 1,225.67 : x
  2. Step 2: Convert to fraction form
    1,921.17/2,877.19 = 1,225.67/x
  3. Step 3: Cross multiply
    1,921.17x = 2,877.19 × 1,225.67
  4. Step 4: Simplify right side
    1,921.17x = 3,526,474.91
  5. Step 5: Solve for x
    x = 3,526,474.91/1,921.17
  6. Step 6: Final answer
    x = 1,835.58

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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.