Home / 1,480.47-2,220.68-384.75

Finding the Fourth Proportional to 1,480.47, 2,220.68 and 384.75

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Solution

The fourth proportional to 1,480.47, 2,220.68 and 384.75 is: 577.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,480.47 : 2,220.68 = 384.75 : x
  2. Step 2: Convert to fraction form
    1,480.47/2,220.68 = 384.75/x
  3. Step 3: Cross multiply
    1,480.47x = 2,220.68 × 384.75
  4. Step 4: Simplify right side
    1,480.47x = 854,406.63
  5. Step 5: Solve for x
    x = 854,406.63/1,480.47
  6. Step 6: Final answer
    x = 577.12

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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.