Home / 1,916.68-2,878.49-1,762.32

Finding the Fourth Proportional to 1,916.68, 2,878.49 and 1,762.32

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Solution

The fourth proportional to 1,916.68, 2,878.49 and 1,762.32 is: 2,646.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,916.68 : 2,878.49 = 1,762.32 : x
  2. Step 2: Convert to fraction form
    1,916.68/2,878.49 = 1,762.32/x
  3. Step 3: Cross multiply
    1,916.68x = 2,878.49 × 1,762.32
  4. Step 4: Simplify right side
    1,916.68x = 5,072,825.78
  5. Step 5: Solve for x
    x = 5,072,825.78/1,916.68
  6. Step 6: Final answer
    x = 2,646.67

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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.