Home / 7,328.60-10,113.45-3,971.45

Finding the Fourth Proportional to 7,328.60, 10,113.45 and 3,971.45

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Solution

The fourth proportional to 7,328.60, 10,113.45 and 3,971.45 is: 5,480.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,328.60 : 10,113.45 = 3,971.45 : x
  2. Step 2: Convert to fraction form
    7,328.60/10,113.45 = 3,971.45/x
  3. Step 3: Cross multiply
    7,328.60x = 10,113.45 × 3,971.45
  4. Step 4: Simplify right side
    7,328.60x = 40,165,010.44
  5. Step 5: Solve for x
    x = 40,165,010.44/7,328.60
  6. Step 6: Final answer
    x = 5,480.59

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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.