Home / 3,485.16-5,222.97-1,291.77

Finding the Fourth Proportional to 3,485.16, 5,222.97 and 1,291.77

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Solution

The fourth proportional to 3,485.16, 5,222.97 and 1,291.77 is: 1,935.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,485.16 : 5,222.97 = 1,291.77 : x
  2. Step 2: Convert to fraction form
    3,485.16/5,222.97 = 1,291.77/x
  3. Step 3: Cross multiply
    3,485.16x = 5,222.97 × 1,291.77
  4. Step 4: Simplify right side
    3,485.16x = 6,746,875.96
  5. Step 5: Solve for x
    x = 6,746,875.96/3,485.16
  6. Step 6: Final answer
    x = 1,935.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.