Home / 7,165.40-10,749.44-2,485.20

Finding the Fourth Proportional to 7,165.40, 10,749.44 and 2,485.20

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Solution

The fourth proportional to 7,165.40, 10,749.44 and 2,485.20 is: 3,728.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,165.40 : 10,749.44 = 2,485.20 : x
  2. Step 2: Convert to fraction form
    7,165.40/10,749.44 = 2,485.20/x
  3. Step 3: Cross multiply
    7,165.40x = 10,749.44 × 2,485.20
  4. Step 4: Simplify right side
    7,165.40x = 26,714,508.29
  5. Step 5: Solve for x
    x = 26,714,508.29/7,165.40
  6. Step 6: Final answer
    x = 3,728.26

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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.