Home / 7,402.74-11,097.63-2,782.50

Finding the Fourth Proportional to 7,402.74, 11,097.63 and 2,782.50

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Solution

The fourth proportional to 7,402.74, 11,097.63 and 2,782.50 is: 4,171.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,402.74 : 11,097.63 = 2,782.50 : x
  2. Step 2: Convert to fraction form
    7,402.74/11,097.63 = 2,782.50/x
  3. Step 3: Cross multiply
    7,402.74x = 11,097.63 × 2,782.50
  4. Step 4: Simplify right side
    7,402.74x = 30,879,155.48
  5. Step 5: Solve for x
    x = 30,879,155.48/7,402.74
  6. Step 6: Final answer
    x = 4,171.31

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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.