Home / 1,214.19-1,819.98-433.44

Finding the Fourth Proportional to 1,214.19, 1,819.98 and 433.44

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Solution

The fourth proportional to 1,214.19, 1,819.98 and 433.44 is: 649.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214.19 : 1,819.98 = 433.44 : x
  2. Step 2: Convert to fraction form
    1,214.19/1,819.98 = 433.44/x
  3. Step 3: Cross multiply
    1,214.19x = 1,819.98 × 433.44
  4. Step 4: Simplify right side
    1,214.19x = 788,852.13
  5. Step 5: Solve for x
    x = 788,852.13/1,214.19
  6. Step 6: Final answer
    x = 649.69

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1.5x scale

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.