Home / 1,810.02-2,715.26-511.49

Finding the Fourth Proportional to 1,810.02, 2,715.26 and 511.49

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Solution

The fourth proportional to 1,810.02, 2,715.26 and 511.49 is: 767.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,810.02 : 2,715.26 = 511.49 : x
  2. Step 2: Convert to fraction form
    1,810.02/2,715.26 = 511.49/x
  3. Step 3: Cross multiply
    1,810.02x = 2,715.26 × 511.49
  4. Step 4: Simplify right side
    1,810.02x = 1,388,812.20
  5. Step 5: Solve for x
    x = 1,388,812.20/1,810.02
  6. Step 6: Final answer
    x = 767.29

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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.