Home / 7,905.31-10,911.15-4,550.07

Finding the Fourth Proportional to 7,905.31, 10,911.15 and 4,550.07

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Solution

The fourth proportional to 7,905.31, 10,911.15 and 4,550.07 is: 6,280.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,905.31 : 10,911.15 = 4,550.07 : x
  2. Step 2: Convert to fraction form
    7,905.31/10,911.15 = 4,550.07/x
  3. Step 3: Cross multiply
    7,905.31x = 10,911.15 × 4,550.07
  4. Step 4: Simplify right side
    7,905.31x = 49,646,441.72
  5. Step 5: Solve for x
    x = 49,646,441.72/7,905.31
  6. Step 6: Final answer
    x = 6,280.14

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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.