Home / 5,172.96-7,135.47-4,511.40

Finding the Fourth Proportional to 5,172.96, 7,135.47 and 4,511.40

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Solution

The fourth proportional to 5,172.96, 7,135.47 and 4,511.40 is: 6,222.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,172.96 : 7,135.47 = 4,511.40 : x
  2. Step 2: Convert to fraction form
    5,172.96/7,135.47 = 4,511.40/x
  3. Step 3: Cross multiply
    5,172.96x = 7,135.47 × 4,511.40
  4. Step 4: Simplify right side
    5,172.96x = 32,190,959.36
  5. Step 5: Solve for x
    x = 32,190,959.36/5,172.96
  6. Step 6: Final answer
    x = 6,222.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.