Home / 3,308.40-4,565.64-1,816.50

Finding the Fourth Proportional to 3,308.40, 4,565.64 and 1,816.50

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Solution

The fourth proportional to 3,308.40, 4,565.64 and 1,816.50 is: 2,506.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,308.40 : 4,565.64 = 1,816.50 : x
  2. Step 2: Convert to fraction form
    3,308.40/4,565.64 = 1,816.50/x
  3. Step 3: Cross multiply
    3,308.40x = 4,565.64 × 1,816.50
  4. Step 4: Simplify right side
    3,308.40x = 8,293,485.06
  5. Step 5: Solve for x
    x = 8,293,485.06/3,308.40
  6. Step 6: Final answer
    x = 2,506.80

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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.