Home / 1,649.58-2,468.54-1,389.84

Finding the Fourth Proportional to 1,649.58, 2,468.54 and 1,389.84

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Solution

The fourth proportional to 1,649.58, 2,468.54 and 1,389.84 is: 2,079.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,649.58 : 2,468.54 = 1,389.84 : x
  2. Step 2: Convert to fraction form
    1,649.58/2,468.54 = 1,389.84/x
  3. Step 3: Cross multiply
    1,649.58x = 2,468.54 × 1,389.84
  4. Step 4: Simplify right side
    1,649.58x = 3,430,875.63
  5. Step 5: Solve for x
    x = 3,430,875.63/1,649.58
  6. Step 6: Final answer
    x = 2,079.85

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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.