Home / 2,623.95-3,620.49-1,561.53

Finding the Fourth Proportional to 2,623.95, 3,620.49 and 1,561.53

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Solution

The fourth proportional to 2,623.95, 3,620.49 and 1,561.53 is: 2,154.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,623.95 : 3,620.49 = 1,561.53 : x
  2. Step 2: Convert to fraction form
    2,623.95/3,620.49 = 1,561.53/x
  3. Step 3: Cross multiply
    2,623.95x = 3,620.49 × 1,561.53
  4. Step 4: Simplify right side
    2,623.95x = 5,653,503.75
  5. Step 5: Solve for x
    x = 5,653,503.75/2,623.95
  6. Step 6: Final answer
    x = 2,154.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.