Home / 3,135.85-4,328.25-1,810.35

Finding the Fourth Proportional to 3,135.85, 4,328.25 and 1,810.35

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Solution

The fourth proportional to 3,135.85, 4,328.25 and 1,810.35 is: 2,498.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,135.85 : 4,328.25 = 1,810.35 : x
  2. Step 2: Convert to fraction form
    3,135.85/4,328.25 = 1,810.35/x
  3. Step 3: Cross multiply
    3,135.85x = 4,328.25 × 1,810.35
  4. Step 4: Simplify right side
    3,135.85x = 7,835,647.39
  5. Step 5: Solve for x
    x = 7,835,647.39/3,135.85
  6. Step 6: Final answer
    x = 2,498.73

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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.