Home / 3,208.13-4,427.63-1,810.88

Finding the Fourth Proportional to 3,208.13, 4,427.63 and 1,810.88

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Solution

The fourth proportional to 3,208.13, 4,427.63 and 1,810.88 is: 2,499.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,208.13 : 4,427.63 = 1,810.88 : x
  2. Step 2: Convert to fraction form
    3,208.13/4,427.63 = 1,810.88/x
  3. Step 3: Cross multiply
    3,208.13x = 4,427.63 × 1,810.88
  4. Step 4: Simplify right side
    3,208.13x = 8,017,875.42
  5. Step 5: Solve for x
    x = 8,017,875.42/3,208.13
  6. Step 6: Final answer
    x = 2,499.24

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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.