Home / 4,927.40-6,800.50-2,831.16

Finding the Fourth Proportional to 4,927.40, 6,800.50 and 2,831.16

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Solution

The fourth proportional to 4,927.40, 6,800.50 and 2,831.16 is: 3,907.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,927.40 : 6,800.50 = 2,831.16 : x
  2. Step 2: Convert to fraction form
    4,927.40/6,800.50 = 2,831.16/x
  3. Step 3: Cross multiply
    4,927.40x = 6,800.50 × 2,831.16
  4. Step 4: Simplify right side
    4,927.40x = 19,253,303.58
  5. Step 5: Solve for x
    x = 19,253,303.58/4,927.40
  6. Step 6: Final answer
    x = 3,907.40

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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.