Home / 3,387.95-4,672.86-2,392.19

Finding the Fourth Proportional to 3,387.95, 4,672.86 and 2,392.19

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Solution

The fourth proportional to 3,387.95, 4,672.86 and 2,392.19 is: 3,299.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,387.95 : 4,672.86 = 2,392.19 : x
  2. Step 2: Convert to fraction form
    3,387.95/4,672.86 = 2,392.19/x
  3. Step 3: Cross multiply
    3,387.95x = 4,672.86 × 2,392.19
  4. Step 4: Simplify right side
    3,387.95x = 11,178,368.96
  5. Step 5: Solve for x
    x = 11,178,368.96/3,387.95
  6. Step 6: Final answer
    x = 3,299.45

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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.