Home / 3,318.15-4,975.60-1,931.96

Finding the Fourth Proportional to 3,318.15, 4,975.60 and 1,931.96

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Solution

The fourth proportional to 3,318.15, 4,975.60 and 1,931.96 is: 2,897.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,318.15 : 4,975.60 = 1,931.96 : x
  2. Step 2: Convert to fraction form
    3,318.15/4,975.60 = 1,931.96/x
  3. Step 3: Cross multiply
    3,318.15x = 4,975.60 × 1,931.96
  4. Step 4: Simplify right side
    3,318.15x = 9,612,671.61
  5. Step 5: Solve for x
    x = 9,612,671.61/3,318.15
  6. Step 6: Final answer
    x = 2,897.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.