Home / 4,620.40-6,380.64-3,953.35

Finding the Fourth Proportional to 4,620.40, 6,380.64 and 3,953.35

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Solution

The fourth proportional to 4,620.40, 6,380.64 and 3,953.35 is: 5,459.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,620.40 : 6,380.64 = 3,953.35 : x
  2. Step 2: Convert to fraction form
    4,620.40/6,380.64 = 3,953.35/x
  3. Step 3: Cross multiply
    4,620.40x = 6,380.64 × 3,953.35
  4. Step 4: Simplify right side
    4,620.40x = 25,224,903.14
  5. Step 5: Solve for x
    x = 25,224,903.14/4,620.40
  6. Step 6: Final answer
    x = 5,459.46

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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.