Home / 1,891.95-2,611.47-1,106.25

Finding the Fourth Proportional to 1,891.95, 2,611.47 and 1,106.25

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Solution

The fourth proportional to 1,891.95, 2,611.47 and 1,106.25 is: 1,526.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,891.95 : 2,611.47 = 1,106.25 : x
  2. Step 2: Convert to fraction form
    1,891.95/2,611.47 = 1,106.25/x
  3. Step 3: Cross multiply
    1,891.95x = 2,611.47 × 1,106.25
  4. Step 4: Simplify right side
    1,891.95x = 2,888,938.69
  5. Step 5: Solve for x
    x = 2,888,938.69/1,891.95
  6. Step 6: Final answer
    x = 1,526.96

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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.