Home / 7,784.42-10,742.81-4,427.82

Finding the Fourth Proportional to 7,784.42, 10,742.81 and 4,427.82

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Solution

The fourth proportional to 7,784.42, 10,742.81 and 4,427.82 is: 6,110.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,784.42 : 10,742.81 = 4,427.82 : x
  2. Step 2: Convert to fraction form
    7,784.42/10,742.81 = 4,427.82/x
  3. Step 3: Cross multiply
    7,784.42x = 10,742.81 × 4,427.82
  4. Step 4: Simplify right side
    7,784.42x = 47,567,206.84
  5. Step 5: Solve for x
    x = 47,567,206.84/7,784.42
  6. Step 6: Final answer
    x = 6,110.57

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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.