Home / 1,899.63-2,621.43-1,113.81

Finding the Fourth Proportional to 1,899.63, 2,621.43 and 1,113.81

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Solution

The fourth proportional to 1,899.63, 2,621.43 and 1,113.81 is: 1,537.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,899.63 : 2,621.43 = 1,113.81 : x
  2. Step 2: Convert to fraction form
    1,899.63/2,621.43 = 1,113.81/x
  3. Step 3: Cross multiply
    1,899.63x = 2,621.43 × 1,113.81
  4. Step 4: Simplify right side
    1,899.63x = 2,919,774.95
  5. Step 5: Solve for x
    x = 2,919,774.95/1,899.63
  6. Step 6: Final answer
    x = 1,537.02

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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.