Home / 3,339.90-5,009.85-1,878.26

Finding the Fourth Proportional to 3,339.90, 5,009.85 and 1,878.26

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Solution

The fourth proportional to 3,339.90, 5,009.85 and 1,878.26 is: 2,817.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,339.90 : 5,009.85 = 1,878.26 : x
  2. Step 2: Convert to fraction form
    3,339.90/5,009.85 = 1,878.26/x
  3. Step 3: Cross multiply
    3,339.90x = 5,009.85 × 1,878.26
  4. Step 4: Simplify right side
    3,339.90x = 9,409,775.81
  5. Step 5: Solve for x
    x = 9,409,775.81/3,339.90
  6. Step 6: Final answer
    x = 2,817.38

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1.5x scale

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.