Home / 1,159.02-1,739.43-510.21

Finding the Fourth Proportional to 1,159.02, 1,739.43 and 510.21

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Solution

The fourth proportional to 1,159.02, 1,739.43 and 510.21 is: 765.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,159.02 : 1,739.43 = 510.21 : x
  2. Step 2: Convert to fraction form
    1,159.02/1,739.43 = 510.21/x
  3. Step 3: Cross multiply
    1,159.02x = 1,739.43 × 510.21
  4. Step 4: Simplify right side
    1,159.02x = 887,474.58
  5. Step 5: Solve for x
    x = 887,474.58/1,159.02
  6. Step 6: Final answer
    x = 765.71

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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.