Home / 1,551.02-2,326.91-511.05

Finding the Fourth Proportional to 1,551.02, 2,326.91 and 511.05

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Solution

The fourth proportional to 1,551.02, 2,326.91 and 511.05 is: 766.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,551.02 : 2,326.91 = 511.05 : x
  2. Step 2: Convert to fraction form
    1,551.02/2,326.91 = 511.05/x
  3. Step 3: Cross multiply
    1,551.02x = 2,326.91 × 511.05
  4. Step 4: Simplify right side
    1,551.02x = 1,189,164.80
  5. Step 5: Solve for x
    x = 1,189,164.80/1,551.02
  6. Step 6: Final answer
    x = 766.70

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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.