Home / 1,360.09-2,038.77-482.20

Finding the Fourth Proportional to 1,360.09, 2,038.77 and 482.20

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Solution

The fourth proportional to 1,360.09, 2,038.77 and 482.20 is: 722.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,360.09 : 2,038.77 = 482.20 : x
  2. Step 2: Convert to fraction form
    1,360.09/2,038.77 = 482.20/x
  3. Step 3: Cross multiply
    1,360.09x = 2,038.77 × 482.20
  4. Step 4: Simplify right side
    1,360.09x = 983,101.27
  5. Step 5: Solve for x
    x = 983,101.27/1,360.09
  6. Step 6: Final answer
    x = 722.82

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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.