Home / 1,888.12-2,812.80-1,818.44

Finding the Fourth Proportional to 1,888.12, 2,812.80 and 1,818.44

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Solution

The fourth proportional to 1,888.12, 2,812.80 and 1,818.44 is: 2,709.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,888.12 : 2,812.80 = 1,818.44 : x
  2. Step 2: Convert to fraction form
    1,888.12/2,812.80 = 1,818.44/x
  3. Step 3: Cross multiply
    1,888.12x = 2,812.80 × 1,818.44
  4. Step 4: Simplify right side
    1,888.12x = 5,114,908.03
  5. Step 5: Solve for x
    x = 5,114,908.03/1,888.12
  6. Step 6: Final answer
    x = 2,709.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.