Home / 7,521.24-11,278.74-2,840.43

Finding the Fourth Proportional to 7,521.24, 11,278.74 and 2,840.43

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Solution

The fourth proportional to 7,521.24, 11,278.74 and 2,840.43 is: 4,259.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,521.24 : 11,278.74 = 2,840.43 : x
  2. Step 2: Convert to fraction form
    7,521.24/11,278.74 = 2,840.43/x
  3. Step 3: Cross multiply
    7,521.24x = 11,278.74 × 2,840.43
  4. Step 4: Simplify right side
    7,521.24x = 32,036,471.46
  5. Step 5: Solve for x
    x = 32,036,471.46/7,521.24
  6. Step 6: Final answer
    x = 4,259.47

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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.