Home / 1,858.06-2,787.63-1,531.90

Finding the Fourth Proportional to 1,858.06, 2,787.63 and 1,531.90

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Solution

The fourth proportional to 1,858.06, 2,787.63 and 1,531.90 is: 2,298.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,858.06 : 2,787.63 = 1,531.90 : x
  2. Step 2: Convert to fraction form
    1,858.06/2,787.63 = 1,531.90/x
  3. Step 3: Cross multiply
    1,858.06x = 2,787.63 × 1,531.90
  4. Step 4: Simplify right side
    1,858.06x = 4,270,370.40
  5. Step 5: Solve for x
    x = 4,270,370.40/1,858.06
  6. Step 6: Final answer
    x = 2,298.30

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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.