Home / 1,812.50-2,719.23-579.93

Finding the Fourth Proportional to 1,812.50, 2,719.23 and 579.93

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Solution

The fourth proportional to 1,812.50, 2,719.23 and 579.93 is: 870.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,812.50 : 2,719.23 = 579.93 : x
  2. Step 2: Convert to fraction form
    1,812.50/2,719.23 = 579.93/x
  3. Step 3: Cross multiply
    1,812.50x = 2,719.23 × 579.93
  4. Step 4: Simplify right side
    1,812.50x = 1,576,960.15
  5. Step 5: Solve for x
    x = 1,576,960.15/1,812.50
  6. Step 6: Final answer
    x = 870.05

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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.