Home / 2,999.85-4,140.18-1,804.29

Finding the Fourth Proportional to 2,999.85, 4,140.18 and 1,804.29

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Solution

The fourth proportional to 2,999.85, 4,140.18 and 1,804.29 is: 2,490.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,999.85 : 4,140.18 = 1,804.29 : x
  2. Step 2: Convert to fraction form
    2,999.85/4,140.18 = 1,804.29/x
  3. Step 3: Cross multiply
    2,999.85x = 4,140.18 × 1,804.29
  4. Step 4: Simplify right side
    2,999.85x = 7,470,085.37
  5. Step 5: Solve for x
    x = 7,470,085.37/2,999.85
  6. Step 6: Final answer
    x = 2,490.15

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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.