Home / 4,920.67-7,379.38-1,800.10

Finding the Fourth Proportional to 4,920.67, 7,379.38 and 1,800.10

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Solution

The fourth proportional to 4,920.67, 7,379.38 and 1,800.10 is: 2,699.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,920.67 : 7,379.38 = 1,800.10 : x
  2. Step 2: Convert to fraction form
    4,920.67/7,379.38 = 1,800.10/x
  3. Step 3: Cross multiply
    4,920.67x = 7,379.38 × 1,800.10
  4. Step 4: Simplify right side
    4,920.67x = 13,283,607.60
  5. Step 5: Solve for x
    x = 13,283,607.60/4,920.67
  6. Step 6: Final answer
    x = 2,699.55

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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.