Home / 2,025.56-3,038.70-709.40

Finding the Fourth Proportional to 2,025.56, 3,038.70 and 709.40

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Solution

The fourth proportional to 2,025.56, 3,038.70 and 709.40 is: 1,064.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,025.56 : 3,038.70 = 709.40 : x
  2. Step 2: Convert to fraction form
    2,025.56/3,038.70 = 709.40/x
  3. Step 3: Cross multiply
    2,025.56x = 3,038.70 × 709.40
  4. Step 4: Simplify right side
    2,025.56x = 2,155,653.78
  5. Step 5: Solve for x
    x = 2,155,653.78/2,025.56
  6. Step 6: Final answer
    x = 1,064.23

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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.