Home / 7,435.78-10,261.34-4,078.50

Finding the Fourth Proportional to 7,435.78, 10,261.34 and 4,078.50

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Solution

The fourth proportional to 7,435.78, 10,261.34 and 4,078.50 is: 5,628.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,435.78 : 10,261.34 = 4,078.50 : x
  2. Step 2: Convert to fraction form
    7,435.78/10,261.34 = 4,078.50/x
  3. Step 3: Cross multiply
    7,435.78x = 10,261.34 × 4,078.50
  4. Step 4: Simplify right side
    7,435.78x = 41,850,875.19
  5. Step 5: Solve for x
    x = 41,850,875.19/7,435.78
  6. Step 6: Final answer
    x = 5,628.31

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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.