Home / 1,434.53-2,151.50-510.12

Finding the Fourth Proportional to 1,434.53, 2,151.50 and 510.12

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Solution

The fourth proportional to 1,434.53, 2,151.50 and 510.12 is: 765.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,434.53 : 2,151.50 = 510.12 : x
  2. Step 2: Convert to fraction form
    1,434.53/2,151.50 = 510.12/x
  3. Step 3: Cross multiply
    1,434.53x = 2,151.50 × 510.12
  4. Step 4: Simplify right side
    1,434.53x = 1,097,523.18
  5. Step 5: Solve for x
    x = 1,097,523.18/1,434.53
  6. Step 6: Final answer
    x = 765.08

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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.