Home / 3,077.84-4,619.44-2,386.40

Finding the Fourth Proportional to 3,077.84, 4,619.44 and 2,386.40

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Solution

The fourth proportional to 3,077.84, 4,619.44 and 2,386.40 is: 3,581.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,077.84 : 4,619.44 = 2,386.40 : x
  2. Step 2: Convert to fraction form
    3,077.84/4,619.44 = 2,386.40/x
  3. Step 3: Cross multiply
    3,077.84x = 4,619.44 × 2,386.40
  4. Step 4: Simplify right side
    3,077.84x = 11,023,831.62
  5. Step 5: Solve for x
    x = 11,023,831.62/3,077.84
  6. Step 6: Final answer
    x = 3,581.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.