Home / 7,480.40-10,328.40-4,829.36

Finding the Fourth Proportional to 7,480.40, 10,328.40 and 4,829.36

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Solution

The fourth proportional to 7,480.40, 10,328.40 and 4,829.36 is: 6,668.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,480.40 : 10,328.40 = 4,829.36 : x
  2. Step 2: Convert to fraction form
    7,480.40/10,328.40 = 4,829.36/x
  3. Step 3: Cross multiply
    7,480.40x = 10,328.40 × 4,829.36
  4. Step 4: Simplify right side
    7,480.40x = 49,879,561.82
  5. Step 5: Solve for x
    x = 49,879,561.82/7,480.40
  6. Step 6: Final answer
    x = 6,668.03

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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.