Home / 3,157.18-4,356.03-1,830.62

Finding the Fourth Proportional to 3,157.18, 4,356.03 and 1,830.62

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Solution

The fourth proportional to 3,157.18, 4,356.03 and 1,830.62 is: 2,525.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,157.18 : 4,356.03 = 1,830.62 : x
  2. Step 2: Convert to fraction form
    3,157.18/4,356.03 = 1,830.62/x
  3. Step 3: Cross multiply
    3,157.18x = 4,356.03 × 1,830.62
  4. Step 4: Simplify right side
    3,157.18x = 7,974,235.64
  5. Step 5: Solve for x
    x = 7,974,235.64/3,157.18
  6. Step 6: Final answer
    x = 2,525.75

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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.