Home / 2,921.86-4,386.26-2,306

Finding the Fourth Proportional to 2,921.86, 4,386.26 and 2,306

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Solution

The fourth proportional to 2,921.86, 4,386.26 and 2,306 is: 3,461.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,921.86 : 4,386.26 = 2,306 : x
  2. Step 2: Convert to fraction form
    2,921.86/4,386.26 = 2,306/x
  3. Step 3: Cross multiply
    2,921.86x = 4,386.26 × 2,306
  4. Step 4: Simplify right side
    2,921.86x = 10,114,715.56
  5. Step 5: Solve for x
    x = 10,114,715.56/2,921.86
  6. Step 6: Final answer
    x = 3,461.74

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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.