Home / 7,490.30-11,235.63-1,943.87

Finding the Fourth Proportional to 7,490.30, 11,235.63 and 1,943.87

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Solution

The fourth proportional to 7,490.30, 11,235.63 and 1,943.87 is: 2,915.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,490.30 : 11,235.63 = 1,943.87 : x
  2. Step 2: Convert to fraction form
    7,490.30/11,235.63 = 1,943.87/x
  3. Step 3: Cross multiply
    7,490.30x = 11,235.63 × 1,943.87
  4. Step 4: Simplify right side
    7,490.30x = 21,840,543.05
  5. Step 5: Solve for x
    x = 21,840,543.05/7,490.30
  6. Step 6: Final answer
    x = 2,915.84

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.