Home / 3,364.47-4,643.07-2,105.12

Finding the Fourth Proportional to 3,364.47, 4,643.07 and 2,105.12

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Solution

The fourth proportional to 3,364.47, 4,643.07 and 2,105.12 is: 2,905.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,364.47 : 4,643.07 = 2,105.12 : x
  2. Step 2: Convert to fraction form
    3,364.47/4,643.07 = 2,105.12/x
  3. Step 3: Cross multiply
    3,364.47x = 4,643.07 × 2,105.12
  4. Step 4: Simplify right side
    3,364.47x = 9,774,219.52
  5. Step 5: Solve for x
    x = 9,774,219.52/3,364.47
  6. Step 6: Final answer
    x = 2,905.13

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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.