Home / 2,973.20-4,459.77-1,985.09

Finding the Fourth Proportional to 2,973.20, 4,459.77 and 1,985.09

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Solution

The fourth proportional to 2,973.20, 4,459.77 and 1,985.09 is: 2,977.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,973.20 : 4,459.77 = 1,985.09 : x
  2. Step 2: Convert to fraction form
    2,973.20/4,459.77 = 1,985.09/x
  3. Step 3: Cross multiply
    2,973.20x = 4,459.77 × 1,985.09
  4. Step 4: Simplify right side
    2,973.20x = 8,853,022.53
  5. Step 5: Solve for x
    x = 8,853,022.53/2,973.20
  6. Step 6: Final answer
    x = 2,977.61

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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.