Home / 2,877.26-3,970.39-1,618.07

Finding the Fourth Proportional to 2,877.26, 3,970.39 and 1,618.07

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Solution

The fourth proportional to 2,877.26, 3,970.39 and 1,618.07 is: 2,232.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,877.26 : 3,970.39 = 1,618.07 : x
  2. Step 2: Convert to fraction form
    2,877.26/3,970.39 = 1,618.07/x
  3. Step 3: Cross multiply
    2,877.26x = 3,970.39 × 1,618.07
  4. Step 4: Simplify right side
    2,877.26x = 6,424,368.95
  5. Step 5: Solve for x
    x = 6,424,368.95/2,877.26
  6. Step 6: Final answer
    x = 2,232.81

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1.5x scale

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.