Home / 3,078.82-4,639.02-2,543.01

Finding the Fourth Proportional to 3,078.82, 4,639.02 and 2,543.01

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Solution

The fourth proportional to 3,078.82, 4,639.02 and 2,543.01 is: 3,831.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,078.82 : 4,639.02 = 2,543.01 : x
  2. Step 2: Convert to fraction form
    3,078.82/4,639.02 = 2,543.01/x
  3. Step 3: Cross multiply
    3,078.82x = 4,639.02 × 2,543.01
  4. Step 4: Simplify right side
    3,078.82x = 11,797,038.34
  5. Step 5: Solve for x
    x = 11,797,038.34/3,078.82
  6. Step 6: Final answer
    x = 3,831.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.