Home / 5,421.69-8,132.57-1,673.42

Finding the Fourth Proportional to 5,421.69, 8,132.57 and 1,673.42

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Solution

The fourth proportional to 5,421.69, 8,132.57 and 1,673.42 is: 2,510.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,421.69 : 8,132.57 = 1,673.42 : x
  2. Step 2: Convert to fraction form
    5,421.69/8,132.57 = 1,673.42/x
  3. Step 3: Cross multiply
    5,421.69x = 8,132.57 × 1,673.42
  4. Step 4: Simplify right side
    5,421.69x = 13,609,156.26
  5. Step 5: Solve for x
    x = 13,609,156.26/5,421.69
  6. Step 6: Final answer
    x = 2,510.13

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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.