Home / 1,880.08-2,591.79-1,318.81

Finding the Fourth Proportional to 1,880.08, 2,591.79 and 1,318.81

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Solution

The fourth proportional to 1,880.08, 2,591.79 and 1,318.81 is: 1,818.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,880.08 : 2,591.79 = 1,318.81 : x
  2. Step 2: Convert to fraction form
    1,880.08/2,591.79 = 1,318.81/x
  3. Step 3: Cross multiply
    1,880.08x = 2,591.79 × 1,318.81
  4. Step 4: Simplify right side
    1,880.08x = 3,418,075.39
  5. Step 5: Solve for x
    x = 3,418,075.39/1,880.08
  6. Step 6: Final answer
    x = 1,818.05

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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.