Home / 3,156.12-4,355.10-1,829.64

Finding the Fourth Proportional to 3,156.12, 4,355.10 and 1,829.64

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Solution

The fourth proportional to 3,156.12, 4,355.10 and 1,829.64 is: 2,524.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,156.12 : 4,355.10 = 1,829.64 : x
  2. Step 2: Convert to fraction form
    3,156.12/4,355.10 = 1,829.64/x
  3. Step 3: Cross multiply
    3,156.12x = 4,355.10 × 1,829.64
  4. Step 4: Simplify right side
    3,156.12x = 7,968,265.16
  5. Step 5: Solve for x
    x = 7,968,265.16/3,156.12
  6. Step 6: Final answer
    x = 2,524.70

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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.