Home / 2,913.80-4,368.78-2,606.60

Finding the Fourth Proportional to 2,913.80, 4,368.78 and 2,606.60

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Solution

The fourth proportional to 2,913.80, 4,368.78 and 2,606.60 is: 3,908.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,913.80 : 4,368.78 = 2,606.60 : x
  2. Step 2: Convert to fraction form
    2,913.80/4,368.78 = 2,606.60/x
  3. Step 3: Cross multiply
    2,913.80x = 4,368.78 × 2,606.60
  4. Step 4: Simplify right side
    2,913.80x = 11,387,661.95
  5. Step 5: Solve for x
    x = 11,387,661.95/2,913.80
  6. Step 6: Final answer
    x = 3,908.18

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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.