Home / 2,916.65-4,371.96-1,355.38

Finding the Fourth Proportional to 2,916.65, 4,371.96 and 1,355.38

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Solution

The fourth proportional to 2,916.65, 4,371.96 and 1,355.38 is: 2,031.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,916.65 : 4,371.96 = 1,355.38 : x
  2. Step 2: Convert to fraction form
    2,916.65/4,371.96 = 1,355.38/x
  3. Step 3: Cross multiply
    2,916.65x = 4,371.96 × 1,355.38
  4. Step 4: Simplify right side
    2,916.65x = 5,925,667.14
  5. Step 5: Solve for x
    x = 5,925,667.14/2,916.65
  6. Step 6: Final answer
    x = 2,031.67

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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.