Home / 7,929.63-10,935.72-4,945.77

Finding the Fourth Proportional to 7,929.63, 10,935.72 and 4,945.77

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Solution

The fourth proportional to 7,929.63, 10,935.72 and 4,945.77 is: 6,820.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,929.63 : 10,935.72 = 4,945.77 : x
  2. Step 2: Convert to fraction form
    7,929.63/10,935.72 = 4,945.77/x
  3. Step 3: Cross multiply
    7,929.63x = 10,935.72 × 4,945.77
  4. Step 4: Simplify right side
    7,929.63x = 54,085,555.90
  5. Step 5: Solve for x
    x = 54,085,555.90/7,929.63
  6. Step 6: Final answer
    x = 6,820.69

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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.