Home / 1,897.18-2,845.40-510.53

Finding the Fourth Proportional to 1,897.18, 2,845.40 and 510.53

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Solution

The fourth proportional to 1,897.18, 2,845.40 and 510.53 is: 765.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,897.18 : 2,845.40 = 510.53 : x
  2. Step 2: Convert to fraction form
    1,897.18/2,845.40 = 510.53/x
  3. Step 3: Cross multiply
    1,897.18x = 2,845.40 × 510.53
  4. Step 4: Simplify right side
    1,897.18x = 1,452,645.28
  5. Step 5: Solve for x
    x = 1,452,645.28/1,897.18
  6. Step 6: Final answer
    x = 765.69

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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.