Home / 3,154.40-4,731.60-1,901.60

Finding the Fourth Proportional to 3,154.40, 4,731.60 and 1,901.60

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Solution

The fourth proportional to 3,154.40, 4,731.60 and 1,901.60 is: 2,852.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,154.40 : 4,731.60 = 1,901.60 : x
  2. Step 2: Convert to fraction form
    3,154.40/4,731.60 = 1,901.60/x
  3. Step 3: Cross multiply
    3,154.40x = 4,731.60 × 1,901.60
  4. Step 4: Simplify right side
    3,154.40x = 8,997,610.56
  5. Step 5: Solve for x
    x = 8,997,610.56/3,154.40
  6. Step 6: Final answer
    x = 2,852.40

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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.