Home / 7,442.16-10,270.28-4,085

Finding the Fourth Proportional to 7,442.16, 10,270.28 and 4,085

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Solution

The fourth proportional to 7,442.16, 10,270.28 and 4,085 is: 5,637.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,442.16 : 10,270.28 = 4,085 : x
  2. Step 2: Convert to fraction form
    7,442.16/10,270.28 = 4,085/x
  3. Step 3: Cross multiply
    7,442.16x = 10,270.28 × 4,085
  4. Step 4: Simplify right side
    7,442.16x = 41,954,093.80
  5. Step 5: Solve for x
    x = 41,954,093.80/7,442.16
  6. Step 6: Final answer
    x = 5,637.35

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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.