Home / 7,927.20-10,939.69-4,569.45

Finding the Fourth Proportional to 7,927.20, 10,939.69 and 4,569.45

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Solution

The fourth proportional to 7,927.20, 10,939.69 and 4,569.45 is: 6,305.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,927.20 : 10,939.69 = 4,569.45 : x
  2. Step 2: Convert to fraction form
    7,927.20/10,939.69 = 4,569.45/x
  3. Step 3: Cross multiply
    7,927.20x = 10,939.69 × 4,569.45
  4. Step 4: Simplify right side
    7,927.20x = 49,988,366.47
  5. Step 5: Solve for x
    x = 49,988,366.47/7,927.20
  6. Step 6: Final answer
    x = 6,305.93

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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.