Home / 3,430.50-5,145.75-1,968.66

Finding the Fourth Proportional to 3,430.50, 5,145.75 and 1,968.66

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Solution

The fourth proportional to 3,430.50, 5,145.75 and 1,968.66 is: 2,952.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,430.50 : 5,145.75 = 1,968.66 : x
  2. Step 2: Convert to fraction form
    3,430.50/5,145.75 = 1,968.66/x
  3. Step 3: Cross multiply
    3,430.50x = 5,145.75 × 1,968.66
  4. Step 4: Simplify right side
    3,430.50x = 10,130,232.20
  5. Step 5: Solve for x
    x = 10,130,232.20/3,430.50
  6. Step 6: Final answer
    x = 2,952.99

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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.