Home / 7,270.48-10,032.78-4,040.12

Finding the Fourth Proportional to 7,270.48, 10,032.78 and 4,040.12

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Solution

The fourth proportional to 7,270.48, 10,032.78 and 4,040.12 is: 5,575.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,270.48 : 10,032.78 = 4,040.12 : x
  2. Step 2: Convert to fraction form
    7,270.48/10,032.78 = 4,040.12/x
  3. Step 3: Cross multiply
    7,270.48x = 10,032.78 × 4,040.12
  4. Step 4: Simplify right side
    7,270.48x = 40,533,635.13
  5. Step 5: Solve for x
    x = 40,533,635.13/7,270.48
  6. Step 6: Final answer
    x = 5,575.10

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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.