Home / 1,646.79-2,468.55-1,355.19

Finding the Fourth Proportional to 1,646.79, 2,468.55 and 1,355.19

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Solution

The fourth proportional to 1,646.79, 2,468.55 and 1,355.19 is: 2,031.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,646.79 : 2,468.55 = 1,355.19 : x
  2. Step 2: Convert to fraction form
    1,646.79/2,468.55 = 1,355.19/x
  3. Step 3: Cross multiply
    1,646.79x = 2,468.55 × 1,355.19
  4. Step 4: Simplify right side
    1,646.79x = 3,345,354.27
  5. Step 5: Solve for x
    x = 3,345,354.27/1,646.79
  6. Step 6: Final answer
    x = 2,031.44

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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.