Home / 3,436.60-4,742.58-2,021.32

Finding the Fourth Proportional to 3,436.60, 4,742.58 and 2,021.32

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Solution

The fourth proportional to 3,436.60, 4,742.58 and 2,021.32 is: 2,789.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,436.60 : 4,742.58 = 2,021.32 : x
  2. Step 2: Convert to fraction form
    3,436.60/4,742.58 = 2,021.32/x
  3. Step 3: Cross multiply
    3,436.60x = 4,742.58 × 2,021.32
  4. Step 4: Simplify right side
    3,436.60x = 9,586,271.81
  5. Step 5: Solve for x
    x = 9,586,271.81/3,436.60
  6. Step 6: Final answer
    x = 2,789.46

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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.