Home / 2,916.92-4,378.01-1,977.59

Finding the Fourth Proportional to 2,916.92, 4,378.01 and 1,977.59

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Solution

The fourth proportional to 2,916.92, 4,378.01 and 1,977.59 is: 2,968.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,916.92 : 4,378.01 = 1,977.59 : x
  2. Step 2: Convert to fraction form
    2,916.92/4,378.01 = 1,977.59/x
  3. Step 3: Cross multiply
    2,916.92x = 4,378.01 × 1,977.59
  4. Step 4: Simplify right side
    2,916.92x = 8,657,908.80
  5. Step 5: Solve for x
    x = 8,657,908.80/2,916.92
  6. Step 6: Final answer
    x = 2,968.17

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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.