Home / 1,787.99-2,465.14-1,157.40

Finding the Fourth Proportional to 1,787.99, 2,465.14 and 1,157.40

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Solution

The fourth proportional to 1,787.99, 2,465.14 and 1,157.40 is: 1,595.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,787.99 : 2,465.14 = 1,157.40 : x
  2. Step 2: Convert to fraction form
    1,787.99/2,465.14 = 1,157.40/x
  3. Step 3: Cross multiply
    1,787.99x = 2,465.14 × 1,157.40
  4. Step 4: Simplify right side
    1,787.99x = 2,853,150.14
  5. Step 5: Solve for x
    x = 2,853,150.14/1,787.99
  6. Step 6: Final answer
    x = 1,595.73

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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.