Home / 5,430.30-8,145.48-2,832.90

Finding the Fourth Proportional to 5,430.30, 8,145.48 and 2,832.90

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Solution

The fourth proportional to 5,430.30, 8,145.48 and 2,832.90 is: 4,249.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,430.30 : 8,145.48 = 2,832.90 : x
  2. Step 2: Convert to fraction form
    5,430.30/8,145.48 = 2,832.90/x
  3. Step 3: Cross multiply
    5,430.30x = 8,145.48 × 2,832.90
  4. Step 4: Simplify right side
    5,430.30x = 23,075,330.29
  5. Step 5: Solve for x
    x = 23,075,330.29/5,430.30
  6. Step 6: Final answer
    x = 4,249.37

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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.