Home / 7,880.26-10,874.88-5,090.62

Finding the Fourth Proportional to 7,880.26, 10,874.88 and 5,090.62

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Solution

The fourth proportional to 7,880.26, 10,874.88 and 5,090.62 is: 7,025.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,880.26 : 10,874.88 = 5,090.62 : x
  2. Step 2: Convert to fraction form
    7,880.26/10,874.88 = 5,090.62/x
  3. Step 3: Cross multiply
    7,880.26x = 10,874.88 × 5,090.62
  4. Step 4: Simplify right side
    7,880.26x = 55,359,881.63
  5. Step 5: Solve for x
    x = 55,359,881.63/7,880.26
  6. Step 6: Final answer
    x = 7,025.13

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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.