Home / 5,447.52-8,172.36-1,985.04

Finding the Fourth Proportional to 5,447.52, 8,172.36 and 1,985.04

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Solution

The fourth proportional to 5,447.52, 8,172.36 and 1,985.04 is: 2,977.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,447.52 : 8,172.36 = 1,985.04 : x
  2. Step 2: Convert to fraction form
    5,447.52/8,172.36 = 1,985.04/x
  3. Step 3: Cross multiply
    5,447.52x = 8,172.36 × 1,985.04
  4. Step 4: Simplify right side
    5,447.52x = 16,222,461.49
  5. Step 5: Solve for x
    x = 16,222,461.49/5,447.52
  6. Step 6: Final answer
    x = 2,977.95

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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.