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Finding the Fourth Proportional to 3,485.55, 4,886.25 and 3,485.55

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Solution

The fourth proportional to 3,485.55, 4,886.25 and 3,485.55 is: 4,886.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,485.55 : 4,886.25 = 3,485.55 : x
  2. Step 2: Convert to fraction form
    3,485.55/4,886.25 = 3,485.55/x
  3. Step 3: Cross multiply
    3,485.55x = 4,886.25 × 3,485.55
  4. Step 4: Simplify right side
    3,485.55x = 17,031,268.69
  5. Step 5: Solve for x
    x = 17,031,268.69/3,485.55
  6. Step 6: Final answer
    x = 4,886.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.