Home / 7,124.48-9,831.08-4,140.44

Finding the Fourth Proportional to 7,124.48, 9,831.08 and 4,140.44

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Solution

The fourth proportional to 7,124.48, 9,831.08 and 4,140.44 is: 5,713.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,124.48 : 9,831.08 = 4,140.44 : x
  2. Step 2: Convert to fraction form
    7,124.48/9,831.08 = 4,140.44/x
  3. Step 3: Cross multiply
    7,124.48x = 9,831.08 × 4,140.44
  4. Step 4: Simplify right side
    7,124.48x = 40,704,996.88
  5. Step 5: Solve for x
    x = 40,704,996.88/7,124.48
  6. Step 6: Final answer
    x = 5,713.40

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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.