Home / 5,613.90-8,406.45-4,145.10

Finding the Fourth Proportional to 5,613.90, 8,406.45 and 4,145.10

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Solution

The fourth proportional to 5,613.90, 8,406.45 and 4,145.10 is: 6,207.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,613.90 : 8,406.45 = 4,145.10 : x
  2. Step 2: Convert to fraction form
    5,613.90/8,406.45 = 4,145.10/x
  3. Step 3: Cross multiply
    5,613.90x = 8,406.45 × 4,145.10
  4. Step 4: Simplify right side
    5,613.90x = 34,845,575.90
  5. Step 5: Solve for x
    x = 34,845,575.90/5,613.90
  6. Step 6: Final answer
    x = 6,207.02

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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.