Home / 5,477.68-7,557.12-3,118.55

Finding the Fourth Proportional to 5,477.68, 7,557.12 and 3,118.55

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Solution

The fourth proportional to 5,477.68, 7,557.12 and 3,118.55 is: 4,302.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,477.68 : 7,557.12 = 3,118.55 : x
  2. Step 2: Convert to fraction form
    5,477.68/7,557.12 = 3,118.55/x
  3. Step 3: Cross multiply
    5,477.68x = 7,557.12 × 3,118.55
  4. Step 4: Simplify right side
    5,477.68x = 23,567,270.07
  5. Step 5: Solve for x
    x = 23,567,270.07/5,477.68
  6. Step 6: Final answer
    x = 4,302.42

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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.