Home / 1,646.48-2,465.12-1,125.38

Finding the Fourth Proportional to 1,646.48, 2,465.12 and 1,125.38

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Solution

The fourth proportional to 1,646.48, 2,465.12 and 1,125.38 is: 1,684.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,646.48 : 2,465.12 = 1,125.38 : x
  2. Step 2: Convert to fraction form
    1,646.48/2,465.12 = 1,125.38/x
  3. Step 3: Cross multiply
    1,646.48x = 2,465.12 × 1,125.38
  4. Step 4: Simplify right side
    1,646.48x = 2,774,196.75
  5. Step 5: Solve for x
    x = 2,774,196.75/1,646.48
  6. Step 6: Final answer
    x = 1,684.93

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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.