Home / 3,118.68-4,303.08-1,860.18

Finding the Fourth Proportional to 3,118.68, 4,303.08 and 1,860.18

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Solution

The fourth proportional to 3,118.68, 4,303.08 and 1,860.18 is: 2,566.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118.68 : 4,303.08 = 1,860.18 : x
  2. Step 2: Convert to fraction form
    3,118.68/4,303.08 = 1,860.18/x
  3. Step 3: Cross multiply
    3,118.68x = 4,303.08 × 1,860.18
  4. Step 4: Simplify right side
    3,118.68x = 8,004,503.35
  5. Step 5: Solve for x
    x = 8,004,503.35/3,118.68
  6. Step 6: Final answer
    x = 2,566.63

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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.