Home / 5,448.28-8,173.65-1,985.50

Finding the Fourth Proportional to 5,448.28, 8,173.65 and 1,985.50

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Solution

The fourth proportional to 5,448.28, 8,173.65 and 1,985.50 is: 2,978.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,448.28 : 8,173.65 = 1,985.50 : x
  2. Step 2: Convert to fraction form
    5,448.28/8,173.65 = 1,985.50/x
  3. Step 3: Cross multiply
    5,448.28x = 8,173.65 × 1,985.50
  4. Step 4: Simplify right side
    5,448.28x = 16,228,782.08
  5. Step 5: Solve for x
    x = 16,228,782.08/5,448.28
  6. Step 6: Final answer
    x = 2,978.70

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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.