Home / 3,901.64-5,853.40-1,128.23

Finding the Fourth Proportional to 3,901.64, 5,853.40 and 1,128.23

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Solution

The fourth proportional to 3,901.64, 5,853.40 and 1,128.23 is: 1,692.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,901.64 : 5,853.40 = 1,128.23 : x
  2. Step 2: Convert to fraction form
    3,901.64/5,853.40 = 1,128.23/x
  3. Step 3: Cross multiply
    3,901.64x = 5,853.40 × 1,128.23
  4. Step 4: Simplify right side
    3,901.64x = 6,603,971.34
  5. Step 5: Solve for x
    x = 6,603,971.34/3,901.64
  6. Step 6: Final answer
    x = 1,692.62

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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.