Home / 1,516.10-2,273.54-578.90

Finding the Fourth Proportional to 1,516.10, 2,273.54 and 578.90

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Solution

The fourth proportional to 1,516.10, 2,273.54 and 578.90 is: 868.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,516.10 : 2,273.54 = 578.90 : x
  2. Step 2: Convert to fraction form
    1,516.10/2,273.54 = 578.90/x
  3. Step 3: Cross multiply
    1,516.10x = 2,273.54 × 578.90
  4. Step 4: Simplify right side
    1,516.10x = 1,316,152.31
  5. Step 5: Solve for x
    x = 1,316,152.31/1,516.10
  6. Step 6: Final answer
    x = 868.12

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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.