Home / 3,639.39-5,459.08-1,140.59

Finding the Fourth Proportional to 3,639.39, 5,459.08 and 1,140.59

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Solution

The fourth proportional to 3,639.39, 5,459.08 and 1,140.59 is: 1,710.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,639.39 : 5,459.08 = 1,140.59 : x
  2. Step 2: Convert to fraction form
    3,639.39/5,459.08 = 1,140.59/x
  3. Step 3: Cross multiply
    3,639.39x = 5,459.08 × 1,140.59
  4. Step 4: Simplify right side
    3,639.39x = 6,226,584.99
  5. Step 5: Solve for x
    x = 6,226,584.99/3,639.39
  6. Step 6: Final answer
    x = 1,710.89

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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.