Home / 3,639.72-5,459.61-1,693.32

Finding the Fourth Proportional to 3,639.72, 5,459.61 and 1,693.32

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Solution

The fourth proportional to 3,639.72, 5,459.61 and 1,693.32 is: 2,539.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,639.72 : 5,459.61 = 1,693.32 : x
  2. Step 2: Convert to fraction form
    3,639.72/5,459.61 = 1,693.32/x
  3. Step 3: Cross multiply
    3,639.72x = 5,459.61 × 1,693.32
  4. Step 4: Simplify right side
    3,639.72x = 9,244,866.81
  5. Step 5: Solve for x
    x = 9,244,866.81/3,639.72
  6. Step 6: Final answer
    x = 2,539.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.