Home / 3,009.85-4,153.40-1,683.32

Finding the Fourth Proportional to 3,009.85, 4,153.40 and 1,683.32

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Solution

The fourth proportional to 3,009.85, 4,153.40 and 1,683.32 is: 2,322.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,009.85 : 4,153.40 = 1,683.32 : x
  2. Step 2: Convert to fraction form
    3,009.85/4,153.40 = 1,683.32/x
  3. Step 3: Cross multiply
    3,009.85x = 4,153.40 × 1,683.32
  4. Step 4: Simplify right side
    3,009.85x = 6,991,503.25
  5. Step 5: Solve for x
    x = 6,991,503.25/3,009.85
  6. Step 6: Final answer
    x = 2,322.88

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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.