Home / 1,975.12-2,962.68-514.27

Finding the Fourth Proportional to 1,975.12, 2,962.68 and 514.27

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Solution

The fourth proportional to 1,975.12, 2,962.68 and 514.27 is: 771.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,975.12 : 2,962.68 = 514.27 : x
  2. Step 2: Convert to fraction form
    1,975.12/2,962.68 = 514.27/x
  3. Step 3: Cross multiply
    1,975.12x = 2,962.68 × 514.27
  4. Step 4: Simplify right side
    1,975.12x = 1,523,602.55
  5. Step 5: Solve for x
    x = 1,523,602.55/1,975.12
  6. Step 6: Final answer
    x = 771.40

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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.