Home / 5,913.84-8,157.60-3,819.18

Finding the Fourth Proportional to 5,913.84, 8,157.60 and 3,819.18

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Solution

The fourth proportional to 5,913.84, 8,157.60 and 3,819.18 is: 5,268.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,913.84 : 8,157.60 = 3,819.18 : x
  2. Step 2: Convert to fraction form
    5,913.84/8,157.60 = 3,819.18/x
  3. Step 3: Cross multiply
    5,913.84x = 8,157.60 × 3,819.18
  4. Step 4: Simplify right side
    5,913.84x = 31,155,342.77
  5. Step 5: Solve for x
    x = 31,155,342.77/5,913.84
  6. Step 6: Final answer
    x = 5,268.21

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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.