Home / 3,858.84-5,313.60-3,488.40

Finding the Fourth Proportional to 3,858.84, 5,313.60 and 3,488.40

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Solution

The fourth proportional to 3,858.84, 5,313.60 and 3,488.40 is: 4,803.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,858.84 : 5,313.60 = 3,488.40 : x
  2. Step 2: Convert to fraction form
    3,858.84/5,313.60 = 3,488.40/x
  3. Step 3: Cross multiply
    3,858.84x = 5,313.60 × 3,488.40
  4. Step 4: Simplify right side
    3,858.84x = 18,535,962.24
  5. Step 5: Solve for x
    x = 18,535,962.24/3,858.84
  6. Step 6: Final answer
    x = 4,803.51

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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.