Home / 3,156.65-4,355.82-1,830.08

Finding the Fourth Proportional to 3,156.65, 4,355.82 and 1,830.08

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Solution

The fourth proportional to 3,156.65, 4,355.82 and 1,830.08 is: 2,525.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,156.65 : 4,355.82 = 1,830.08 : x
  2. Step 2: Convert to fraction form
    3,156.65/4,355.82 = 1,830.08/x
  3. Step 3: Cross multiply
    3,156.65x = 4,355.82 × 1,830.08
  4. Step 4: Simplify right side
    3,156.65x = 7,971,499.07
  5. Step 5: Solve for x
    x = 7,971,499.07/3,156.65
  6. Step 6: Final answer
    x = 2,525.30

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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.