Home / 1,814.85-2,721.06-718.92

Finding the Fourth Proportional to 1,814.85, 2,721.06 and 718.92

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Solution

The fourth proportional to 1,814.85, 2,721.06 and 718.92 is: 1,077.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,814.85 : 2,721.06 = 718.92 : x
  2. Step 2: Convert to fraction form
    1,814.85/2,721.06 = 718.92/x
  3. Step 3: Cross multiply
    1,814.85x = 2,721.06 × 718.92
  4. Step 4: Simplify right side
    1,814.85x = 1,956,224.46
  5. Step 5: Solve for x
    x = 1,956,224.46/1,814.85
  6. Step 6: Final answer
    x = 1,077.90

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1.5x scale

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.