Home / 2,911.80-4,334.79-2,894.52

Finding the Fourth Proportional to 2,911.80, 4,334.79 and 2,894.52

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Solution

The fourth proportional to 2,911.80, 4,334.79 and 2,894.52 is: 4,309.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,911.80 : 4,334.79 = 2,894.52 : x
  2. Step 2: Convert to fraction form
    2,911.80/4,334.79 = 2,894.52/x
  3. Step 3: Cross multiply
    2,911.80x = 4,334.79 × 2,894.52
  4. Step 4: Simplify right side
    2,911.80x = 12,547,136.35
  5. Step 5: Solve for x
    x = 12,547,136.35/2,911.80
  6. Step 6: Final answer
    x = 4,309.07

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.