Home / 3,070.64-4,603.10-1,121.38

Finding the Fourth Proportional to 3,070.64, 4,603.10 and 1,121.38

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Solution

The fourth proportional to 3,070.64, 4,603.10 and 1,121.38 is: 1,681.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,070.64 : 4,603.10 = 1,121.38 : x
  2. Step 2: Convert to fraction form
    3,070.64/4,603.10 = 1,121.38/x
  3. Step 3: Cross multiply
    3,070.64x = 4,603.10 × 1,121.38
  4. Step 4: Simplify right side
    3,070.64x = 5,161,801.26
  5. Step 5: Solve for x
    x = 5,161,801.26/3,070.64
  6. Step 6: Final answer
    x = 1,681.02

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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.