Home / 1,867.93-2,801.23-618.29

Finding the Fourth Proportional to 1,867.93, 2,801.23 and 618.29

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Solution

The fourth proportional to 1,867.93, 2,801.23 and 618.29 is: 927.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,867.93 : 2,801.23 = 618.29 : x
  2. Step 2: Convert to fraction form
    1,867.93/2,801.23 = 618.29/x
  3. Step 3: Cross multiply
    1,867.93x = 2,801.23 × 618.29
  4. Step 4: Simplify right side
    1,867.93x = 1,731,969.41
  5. Step 5: Solve for x
    x = 1,731,969.41/1,867.93
  6. Step 6: Final answer
    x = 927.21

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1.5x scale

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.