Home / 1,779.21-2,670.03-1,259.19

Finding the Fourth Proportional to 1,779.21, 2,670.03 and 1,259.19

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Solution

The fourth proportional to 1,779.21, 2,670.03 and 1,259.19 is: 1,889.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,779.21 : 2,670.03 = 1,259.19 : x
  2. Step 2: Convert to fraction form
    1,779.21/2,670.03 = 1,259.19/x
  3. Step 3: Cross multiply
    1,779.21x = 2,670.03 × 1,259.19
  4. Step 4: Simplify right side
    1,779.21x = 3,362,075.08
  5. Step 5: Solve for x
    x = 3,362,075.08/1,779.21
  6. Step 6: Final answer
    x = 1,889.64

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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.