Home / 1,603.32-2,405.88-1,055.76

Finding the Fourth Proportional to 1,603.32, 2,405.88 and 1,055.76

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Solution

The fourth proportional to 1,603.32, 2,405.88 and 1,055.76 is: 1,584.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,603.32 : 2,405.88 = 1,055.76 : x
  2. Step 2: Convert to fraction form
    1,603.32/2,405.88 = 1,055.76/x
  3. Step 3: Cross multiply
    1,603.32x = 2,405.88 × 1,055.76
  4. Step 4: Simplify right side
    1,603.32x = 2,540,031.87
  5. Step 5: Solve for x
    x = 2,540,031.87/1,603.32
  6. Step 6: Final answer
    x = 1,584.23

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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.