Home / 1,747.58-2,620.89-514.62

Finding the Fourth Proportional to 1,747.58, 2,620.89 and 514.62

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Solution

The fourth proportional to 1,747.58, 2,620.89 and 514.62 is: 771.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,747.58 : 2,620.89 = 514.62 : x
  2. Step 2: Convert to fraction form
    1,747.58/2,620.89 = 514.62/x
  3. Step 3: Cross multiply
    1,747.58x = 2,620.89 × 514.62
  4. Step 4: Simplify right side
    1,747.58x = 1,348,762.41
  5. Step 5: Solve for x
    x = 1,348,762.41/1,747.58
  6. Step 6: Final answer
    x = 771.79

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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.