Home / 7,146.02-10,718.43-1,951.90

Finding the Fourth Proportional to 7,146.02, 10,718.43 and 1,951.90

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Solution

The fourth proportional to 7,146.02, 10,718.43 and 1,951.90 is: 2,927.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,146.02 : 10,718.43 = 1,951.90 : x
  2. Step 2: Convert to fraction form
    7,146.02/10,718.43 = 1,951.90/x
  3. Step 3: Cross multiply
    7,146.02x = 10,718.43 × 1,951.90
  4. Step 4: Simplify right side
    7,146.02x = 20,921,269.40
  5. Step 5: Solve for x
    x = 20,921,269.40/7,146.02
  6. Step 6: Final answer
    x = 2,927.68

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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.