Home / 1,577.71-2,177.25-914.95

Finding the Fourth Proportional to 1,577.71, 2,177.25 and 914.95

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Solution

The fourth proportional to 1,577.71, 2,177.25 and 914.95 is: 1,262.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,577.71 : 2,177.25 = 914.95 : x
  2. Step 2: Convert to fraction form
    1,577.71/2,177.25 = 914.95/x
  3. Step 3: Cross multiply
    1,577.71x = 2,177.25 × 914.95
  4. Step 4: Simplify right side
    1,577.71x = 1,992,075.76
  5. Step 5: Solve for x
    x = 1,992,075.76/1,577.71
  6. Step 6: Final answer
    x = 1,262.64

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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.