Home / 1,230.24-1,841.76-904.80

Finding the Fourth Proportional to 1,230.24, 1,841.76 and 904.80

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Solution

The fourth proportional to 1,230.24, 1,841.76 and 904.80 is: 1,354.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230.24 : 1,841.76 = 904.80 : x
  2. Step 2: Convert to fraction form
    1,230.24/1,841.76 = 904.80/x
  3. Step 3: Cross multiply
    1,230.24x = 1,841.76 × 904.80
  4. Step 4: Simplify right side
    1,230.24x = 1,666,424.45
  5. Step 5: Solve for x
    x = 1,666,424.45/1,230.24
  6. Step 6: Final answer
    x = 1,354.55

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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.