Home / 1,835.70-2,756.16-1,145.28

Finding the Fourth Proportional to 1,835.70, 2,756.16 and 1,145.28

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Solution

The fourth proportional to 1,835.70, 2,756.16 and 1,145.28 is: 1,719.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,835.70 : 2,756.16 = 1,145.28 : x
  2. Step 2: Convert to fraction form
    1,835.70/2,756.16 = 1,145.28/x
  3. Step 3: Cross multiply
    1,835.70x = 2,756.16 × 1,145.28
  4. Step 4: Simplify right side
    1,835.70x = 3,156,574.92
  5. Step 5: Solve for x
    x = 3,156,574.92/1,835.70
  6. Step 6: Final answer
    x = 1,719.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.