Home / 3,530.90-5,294.47-1,190.12

Finding the Fourth Proportional to 3,530.90, 5,294.47 and 1,190.12

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Solution

The fourth proportional to 3,530.90, 5,294.47 and 1,190.12 is: 1,784.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,530.90 : 5,294.47 = 1,190.12 : x
  2. Step 2: Convert to fraction form
    3,530.90/5,294.47 = 1,190.12/x
  3. Step 3: Cross multiply
    3,530.90x = 5,294.47 × 1,190.12
  4. Step 4: Simplify right side
    3,530.90x = 6,301,054.64
  5. Step 5: Solve for x
    x = 6,301,054.64/3,530.90
  6. Step 6: Final answer
    x = 1,784.55

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Double scale
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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.