Home / 3,574.40-4,921.98-2,783.84

Finding the Fourth Proportional to 3,574.40, 4,921.98 and 2,783.84

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Solution

The fourth proportional to 3,574.40, 4,921.98 and 2,783.84 is: 3,833.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,574.40 : 4,921.98 = 2,783.84 : x
  2. Step 2: Convert to fraction form
    3,574.40/4,921.98 = 2,783.84/x
  3. Step 3: Cross multiply
    3,574.40x = 4,921.98 × 2,783.84
  4. Step 4: Simplify right side
    3,574.40x = 13,702,004.80
  5. Step 5: Solve for x
    x = 13,702,004.80/3,574.40
  6. Step 6: Final answer
    x = 3,833.37

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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.