Home / 1,899.83-2,621.70-1,113.86

Finding the Fourth Proportional to 1,899.83, 2,621.70 and 1,113.86

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Solution

The fourth proportional to 1,899.83, 2,621.70 and 1,113.86 is: 1,537.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,899.83 : 2,621.70 = 1,113.86 : x
  2. Step 2: Convert to fraction form
    1,899.83/2,621.70 = 1,113.86/x
  3. Step 3: Cross multiply
    1,899.83x = 2,621.70 × 1,113.86
  4. Step 4: Simplify right side
    1,899.83x = 2,920,193.65
  5. Step 5: Solve for x
    x = 2,920,193.65/1,899.83
  6. Step 6: Final answer
    x = 1,537.09

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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.