Home / 3,156.08-4,355.39-1,830.55

Finding the Fourth Proportional to 3,156.08, 4,355.39 and 1,830.55

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Solution

The fourth proportional to 3,156.08, 4,355.39 and 1,830.55 is: 2,526.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,156.08 : 4,355.39 = 1,830.55 : x
  2. Step 2: Convert to fraction form
    3,156.08/4,355.39 = 1,830.55/x
  3. Step 3: Cross multiply
    3,156.08x = 4,355.39 × 1,830.55
  4. Step 4: Simplify right side
    3,156.08x = 7,972,759.16
  5. Step 5: Solve for x
    x = 7,972,759.16/3,156.08
  6. Step 6: Final answer
    x = 2,526.16

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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.