Home / 7,859.12-10,845.48-4,322.12

Finding the Fourth Proportional to 7,859.12, 10,845.48 and 4,322.12

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Solution

The fourth proportional to 7,859.12, 10,845.48 and 4,322.12 is: 5,964.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,859.12 : 10,845.48 = 4,322.12 : x
  2. Step 2: Convert to fraction form
    7,859.12/10,845.48 = 4,322.12/x
  3. Step 3: Cross multiply
    7,859.12x = 10,845.48 × 4,322.12
  4. Step 4: Simplify right side
    7,859.12x = 46,875,466.02
  5. Step 5: Solve for x
    x = 46,875,466.02/7,859.12
  6. Step 6: Final answer
    x = 5,964.47

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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.