Home / 2,587.29-3,881.88-1,614.21

Finding the Fourth Proportional to 2,587.29, 3,881.88 and 1,614.21

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Solution

The fourth proportional to 2,587.29, 3,881.88 and 1,614.21 is: 2,421.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,587.29 : 3,881.88 = 1,614.21 : x
  2. Step 2: Convert to fraction form
    2,587.29/3,881.88 = 1,614.21/x
  3. Step 3: Cross multiply
    2,587.29x = 3,881.88 × 1,614.21
  4. Step 4: Simplify right side
    2,587.29x = 6,266,169.51
  5. Step 5: Solve for x
    x = 6,266,169.51/2,587.29
  6. Step 6: Final answer
    x = 2,421.90

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1.5x scale

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.