Home / 3,385.18-5,078.70-1,925.38

Finding the Fourth Proportional to 3,385.18, 5,078.70 and 1,925.38

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Solution

The fourth proportional to 3,385.18, 5,078.70 and 1,925.38 is: 2,888.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,385.18 : 5,078.70 = 1,925.38 : x
  2. Step 2: Convert to fraction form
    3,385.18/5,078.70 = 1,925.38/x
  3. Step 3: Cross multiply
    3,385.18x = 5,078.70 × 1,925.38
  4. Step 4: Simplify right side
    3,385.18x = 9,778,427.41
  5. Step 5: Solve for x
    x = 9,778,427.41/3,385.18
  6. Step 6: Final answer
    x = 2,888.60

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1.5x scale

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.