Home / 4,815.60-6,642.10-3,133.92

Finding the Fourth Proportional to 4,815.60, 6,642.10 and 3,133.92

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Solution

The fourth proportional to 4,815.60, 6,642.10 and 3,133.92 is: 4,322.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,815.60 : 6,642.10 = 3,133.92 : x
  2. Step 2: Convert to fraction form
    4,815.60/6,642.10 = 3,133.92/x
  3. Step 3: Cross multiply
    4,815.60x = 6,642.10 × 3,133.92
  4. Step 4: Simplify right side
    4,815.60x = 20,815,810.03
  5. Step 5: Solve for x
    x = 20,815,810.03/4,815.60
  6. Step 6: Final answer
    x = 4,322.58

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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.