Home / 1,962.83-2,706.08-1,681.86

Finding the Fourth Proportional to 1,962.83, 2,706.08 and 1,681.86

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Solution

The fourth proportional to 1,962.83, 2,706.08 and 1,681.86 is: 2,318.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,962.83 : 2,706.08 = 1,681.86 : x
  2. Step 2: Convert to fraction form
    1,962.83/2,706.08 = 1,681.86/x
  3. Step 3: Cross multiply
    1,962.83x = 2,706.08 × 1,681.86
  4. Step 4: Simplify right side
    1,962.83x = 4,551,239.30
  5. Step 5: Solve for x
    x = 4,551,239.30/1,962.83
  6. Step 6: Final answer
    x = 2,318.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.