Home / 1,603.28-2,403-1,113.68

Finding the Fourth Proportional to 1,603.28, 2,403 and 1,113.68

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Solution

The fourth proportional to 1,603.28, 2,403 and 1,113.68 is: 1,669.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,603.28 : 2,403 = 1,113.68 : x
  2. Step 2: Convert to fraction form
    1,603.28/2,403 = 1,113.68/x
  3. Step 3: Cross multiply
    1,603.28x = 2,403 × 1,113.68
  4. Step 4: Simplify right side
    1,603.28x = 2,676,173.04
  5. Step 5: Solve for x
    x = 2,676,173.04/1,603.28
  6. Step 6: Final answer
    x = 1,669.19

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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.