Home / 4,642.48-6,403.08-3,151.54

Finding the Fourth Proportional to 4,642.48, 6,403.08 and 3,151.54

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Solution

The fourth proportional to 4,642.48, 6,403.08 and 3,151.54 is: 4,346.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,642.48 : 6,403.08 = 3,151.54 : x
  2. Step 2: Convert to fraction form
    4,642.48/6,403.08 = 3,151.54/x
  3. Step 3: Cross multiply
    4,642.48x = 6,403.08 × 3,151.54
  4. Step 4: Simplify right side
    4,642.48x = 20,179,562.74
  5. Step 5: Solve for x
    x = 20,179,562.74/4,642.48
  6. Step 6: Final answer
    x = 4,346.72

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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.