Home / 1,947.36-2,923.35-1,536.78

Finding the Fourth Proportional to 1,947.36, 2,923.35 and 1,536.78

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Solution

The fourth proportional to 1,947.36, 2,923.35 and 1,536.78 is: 2,306.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,947.36 : 2,923.35 = 1,536.78 : x
  2. Step 2: Convert to fraction form
    1,947.36/2,923.35 = 1,536.78/x
  3. Step 3: Cross multiply
    1,947.36x = 2,923.35 × 1,536.78
  4. Step 4: Simplify right side
    1,947.36x = 4,492,545.81
  5. Step 5: Solve for x
    x = 4,492,545.81/1,947.36
  6. Step 6: Final answer
    x = 2,306.99

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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.