Home / 6,421.05-8,865.45-4,032.09

Finding the Fourth Proportional to 6,421.05, 8,865.45 and 4,032.09

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Solution

The fourth proportional to 6,421.05, 8,865.45 and 4,032.09 is: 5,567.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,421.05 : 8,865.45 = 4,032.09 : x
  2. Step 2: Convert to fraction form
    6,421.05/8,865.45 = 4,032.09/x
  3. Step 3: Cross multiply
    6,421.05x = 8,865.45 × 4,032.09
  4. Step 4: Simplify right side
    6,421.05x = 35,746,292.29
  5. Step 5: Solve for x
    x = 35,746,292.29/6,421.05
  6. Step 6: Final answer
    x = 5,567.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.