Home / 4,875.66-6,721.86-3,196.45

Finding the Fourth Proportional to 4,875.66, 6,721.86 and 3,196.45

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Solution

The fourth proportional to 4,875.66, 6,721.86 and 3,196.45 is: 4,406.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,875.66 : 6,721.86 = 3,196.45 : x
  2. Step 2: Convert to fraction form
    4,875.66/6,721.86 = 3,196.45/x
  3. Step 3: Cross multiply
    4,875.66x = 6,721.86 × 3,196.45
  4. Step 4: Simplify right side
    4,875.66x = 21,486,109.79
  5. Step 5: Solve for x
    x = 21,486,109.79/4,875.66
  6. Step 6: Final answer
    x = 4,406.81

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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.