Home / 5,455.68-7,526.88-3,880.32

Finding the Fourth Proportional to 5,455.68, 7,526.88 and 3,880.32

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Solution

The fourth proportional to 5,455.68, 7,526.88 and 3,880.32 is: 5,353.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,455.68 : 7,526.88 = 3,880.32 : x
  2. Step 2: Convert to fraction form
    5,455.68/7,526.88 = 3,880.32/x
  3. Step 3: Cross multiply
    5,455.68x = 7,526.88 × 3,880.32
  4. Step 4: Simplify right side
    5,455.68x = 29,206,703.00
  5. Step 5: Solve for x
    x = 29,206,703.00/5,455.68
  6. Step 6: Final answer
    x = 5,353.45

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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.