Home / 2,355.28-3,529.80-1,038.16

Finding the Fourth Proportional to 2,355.28, 3,529.80 and 1,038.16

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Solution

The fourth proportional to 2,355.28, 3,529.80 and 1,038.16 is: 1,555.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,355.28 : 3,529.80 = 1,038.16 : x
  2. Step 2: Convert to fraction form
    2,355.28/3,529.80 = 1,038.16/x
  3. Step 3: Cross multiply
    2,355.28x = 3,529.80 × 1,038.16
  4. Step 4: Simplify right side
    2,355.28x = 3,664,497.17
  5. Step 5: Solve for x
    x = 3,664,497.17/2,355.28
  6. Step 6: Final answer
    x = 1,555.86

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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.