Home / 3,188.59-4,400.69-1,930.45

Finding the Fourth Proportional to 3,188.59, 4,400.69 and 1,930.45

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Solution

The fourth proportional to 3,188.59, 4,400.69 and 1,930.45 is: 2,664.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,188.59 : 4,400.69 = 1,930.45 : x
  2. Step 2: Convert to fraction form
    3,188.59/4,400.69 = 1,930.45/x
  3. Step 3: Cross multiply
    3,188.59x = 4,400.69 × 1,930.45
  4. Step 4: Simplify right side
    3,188.59x = 8,495,312.01
  5. Step 5: Solve for x
    x = 8,495,312.01/3,188.59
  6. Step 6: Final answer
    x = 2,664.28

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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.