Home / 1,838.85-2,537.63-999.56

Finding the Fourth Proportional to 1,838.85, 2,537.63 and 999.56

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Solution

The fourth proportional to 1,838.85, 2,537.63 and 999.56 is: 1,379.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,838.85 : 2,537.63 = 999.56 : x
  2. Step 2: Convert to fraction form
    1,838.85/2,537.63 = 999.56/x
  3. Step 3: Cross multiply
    1,838.85x = 2,537.63 × 999.56
  4. Step 4: Simplify right side
    1,838.85x = 2,536,499.51
  5. Step 5: Solve for x
    x = 2,536,499.51/1,838.85
  6. Step 6: Final answer
    x = 1,379.39

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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.