Home / 3,118.30-4,303.30-1,860.08

Finding the Fourth Proportional to 3,118.30, 4,303.30 and 1,860.08

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Solution

The fourth proportional to 3,118.30, 4,303.30 and 1,860.08 is: 2,566.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118.30 : 4,303.30 = 1,860.08 : x
  2. Step 2: Convert to fraction form
    3,118.30/4,303.30 = 1,860.08/x
  3. Step 3: Cross multiply
    3,118.30x = 4,303.30 × 1,860.08
  4. Step 4: Simplify right side
    3,118.30x = 8,004,456.10
  5. Step 5: Solve for x
    x = 8,004,456.10/3,118.30
  6. Step 6: Final answer
    x = 2,566.93

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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.