Home / 3,038.03-4,192.78-1,779.01

Finding the Fourth Proportional to 3,038.03, 4,192.78 and 1,779.01

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Solution

The fourth proportional to 3,038.03, 4,192.78 and 1,779.01 is: 2,455.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,038.03 : 4,192.78 = 1,779.01 : x
  2. Step 2: Convert to fraction form
    3,038.03/4,192.78 = 1,779.01/x
  3. Step 3: Cross multiply
    3,038.03x = 4,192.78 × 1,779.01
  4. Step 4: Simplify right side
    3,038.03x = 7,458,997.55
  5. Step 5: Solve for x
    x = 7,458,997.55/3,038.03
  6. Step 6: Final answer
    x = 2,455.21

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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.