Home / 3,378.34-4,661.98-1,886.32

Finding the Fourth Proportional to 3,378.34, 4,661.98 and 1,886.32

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Solution

The fourth proportional to 3,378.34, 4,661.98 and 1,886.32 is: 2,603.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,378.34 : 4,661.98 = 1,886.32 : x
  2. Step 2: Convert to fraction form
    3,378.34/4,661.98 = 1,886.32/x
  3. Step 3: Cross multiply
    3,378.34x = 4,661.98 × 1,886.32
  4. Step 4: Simplify right side
    3,378.34x = 8,793,986.11
  5. Step 5: Solve for x
    x = 8,793,986.11/3,378.34
  6. Step 6: Final answer
    x = 2,603.05

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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.