Home / 1,458.03-2,187.45-533.55

Finding the Fourth Proportional to 1,458.03, 2,187.45 and 533.55

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Solution

The fourth proportional to 1,458.03, 2,187.45 and 533.55 is: 800.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,458.03 : 2,187.45 = 533.55 : x
  2. Step 2: Convert to fraction form
    1,458.03/2,187.45 = 533.55/x
  3. Step 3: Cross multiply
    1,458.03x = 2,187.45 × 533.55
  4. Step 4: Simplify right side
    1,458.03x = 1,167,113.95
  5. Step 5: Solve for x
    x = 1,167,113.95/1,458.03
  6. Step 6: Final answer
    x = 800.47

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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.