Home / 7,809.49-10,777.36-4,272.70

Finding the Fourth Proportional to 7,809.49, 10,777.36 and 4,272.70

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Solution

The fourth proportional to 7,809.49, 10,777.36 and 4,272.70 is: 5,896.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,809.49 : 10,777.36 = 4,272.70 : x
  2. Step 2: Convert to fraction form
    7,809.49/10,777.36 = 4,272.70/x
  3. Step 3: Cross multiply
    7,809.49x = 10,777.36 × 4,272.70
  4. Step 4: Simplify right side
    7,809.49x = 46,048,372.19
  5. Step 5: Solve for x
    x = 46,048,372.19/7,809.49
  6. Step 6: Final answer
    x = 5,896.47

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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.