Home / 2,430.36-3,647.16-1,779.12

Finding the Fourth Proportional to 2,430.36, 3,647.16 and 1,779.12

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Solution

The fourth proportional to 2,430.36, 3,647.16 and 1,779.12 is: 2,669.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,430.36 : 3,647.16 = 1,779.12 : x
  2. Step 2: Convert to fraction form
    2,430.36/3,647.16 = 1,779.12/x
  3. Step 3: Cross multiply
    2,430.36x = 3,647.16 × 1,779.12
  4. Step 4: Simplify right side
    2,430.36x = 6,488,735.30
  5. Step 5: Solve for x
    x = 6,488,735.30/2,430.36
  6. Step 6: Final answer
    x = 2,669.87

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1.5x scale

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.