Home / 5,574.28-7,690.50-3,898.36

Finding the Fourth Proportional to 5,574.28, 7,690.50 and 3,898.36

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Solution

The fourth proportional to 5,574.28, 7,690.50 and 3,898.36 is: 5,378.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,574.28 : 7,690.50 = 3,898.36 : x
  2. Step 2: Convert to fraction form
    5,574.28/7,690.50 = 3,898.36/x
  3. Step 3: Cross multiply
    5,574.28x = 7,690.50 × 3,898.36
  4. Step 4: Simplify right side
    5,574.28x = 29,980,337.58
  5. Step 5: Solve for x
    x = 29,980,337.58/5,574.28
  6. Step 6: Final answer
    x = 5,378.33

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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.