Home / 2,646.16-3,968.85-1,853.11

Finding the Fourth Proportional to 2,646.16, 3,968.85 and 1,853.11

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Solution

The fourth proportional to 2,646.16, 3,968.85 and 1,853.11 is: 2,779.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,646.16 : 3,968.85 = 1,853.11 : x
  2. Step 2: Convert to fraction form
    2,646.16/3,968.85 = 1,853.11/x
  3. Step 3: Cross multiply
    2,646.16x = 3,968.85 × 1,853.11
  4. Step 4: Simplify right side
    2,646.16x = 7,354,727.53
  5. Step 5: Solve for x
    x = 7,354,727.53/2,646.16
  6. Step 6: Final answer
    x = 2,779.40

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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.