Home / 3,185.58-4,775.64-1,210.10

Finding the Fourth Proportional to 3,185.58, 4,775.64 and 1,210.10

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Solution

The fourth proportional to 3,185.58, 4,775.64 and 1,210.10 is: 1,814.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,185.58 : 4,775.64 = 1,210.10 : x
  2. Step 2: Convert to fraction form
    3,185.58/4,775.64 = 1,210.10/x
  3. Step 3: Cross multiply
    3,185.58x = 4,775.64 × 1,210.10
  4. Step 4: Simplify right side
    3,185.58x = 5,779,001.96
  5. Step 5: Solve for x
    x = 5,779,001.96/3,185.58
  6. Step 6: Final answer
    x = 1,814.11

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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.