Home / 3,901.50-5,852.21-1,128.15

Finding the Fourth Proportional to 3,901.50, 5,852.21 and 1,128.15

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Solution

The fourth proportional to 3,901.50, 5,852.21 and 1,128.15 is: 1,692.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,901.50 : 5,852.21 = 1,128.15 : x
  2. Step 2: Convert to fraction form
    3,901.50/5,852.21 = 1,128.15/x
  3. Step 3: Cross multiply
    3,901.50x = 5,852.21 × 1,128.15
  4. Step 4: Simplify right side
    3,901.50x = 6,602,165.07
  5. Step 5: Solve for x
    x = 6,602,165.07/3,901.50
  6. Step 6: Final answer
    x = 1,692.21

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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.