Home / 5,145.30-7,103.43-3,570.66

Finding the Fourth Proportional to 5,145.30, 7,103.43 and 3,570.66

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Solution

The fourth proportional to 5,145.30, 7,103.43 and 3,570.66 is: 4,929.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,145.30 : 7,103.43 = 3,570.66 : x
  2. Step 2: Convert to fraction form
    5,145.30/7,103.43 = 3,570.66/x
  3. Step 3: Cross multiply
    5,145.30x = 7,103.43 × 3,570.66
  4. Step 4: Simplify right side
    5,145.30x = 25,363,933.36
  5. Step 5: Solve for x
    x = 25,363,933.36/5,145.30
  6. Step 6: Final answer
    x = 4,929.53

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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.