Home / 7,521.60-11,279.30-2,840.81

Finding the Fourth Proportional to 7,521.60, 11,279.30 and 2,840.81

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Solution

The fourth proportional to 7,521.60, 11,279.30 and 2,840.81 is: 4,260.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,521.60 : 11,279.30 = 2,840.81 : x
  2. Step 2: Convert to fraction form
    7,521.60/11,279.30 = 2,840.81/x
  3. Step 3: Cross multiply
    7,521.60x = 11,279.30 × 2,840.81
  4. Step 4: Simplify right side
    7,521.60x = 32,042,362.23
  5. Step 5: Solve for x
    x = 32,042,362.23/7,521.60
  6. Step 6: Final answer
    x = 4,260.05

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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.