Home / 3,705.32-5,113.80-2,133.40

Finding the Fourth Proportional to 3,705.32, 5,113.80 and 2,133.40

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Solution

The fourth proportional to 3,705.32, 5,113.80 and 2,133.40 is: 2,944.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,705.32 : 5,113.80 = 2,133.40 : x
  2. Step 2: Convert to fraction form
    3,705.32/5,113.80 = 2,133.40/x
  3. Step 3: Cross multiply
    3,705.32x = 5,113.80 × 2,133.40
  4. Step 4: Simplify right side
    3,705.32x = 10,909,780.92
  5. Step 5: Solve for x
    x = 10,909,780.92/3,705.32
  6. Step 6: Final answer
    x = 2,944.36

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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.