Home / 4,407.79-6,613.70-1,909.74

Finding the Fourth Proportional to 4,407.79, 6,613.70 and 1,909.74

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Solution

The fourth proportional to 4,407.79, 6,613.70 and 1,909.74 is: 2,865.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,407.79 : 6,613.70 = 1,909.74 : x
  2. Step 2: Convert to fraction form
    4,407.79/6,613.70 = 1,909.74/x
  3. Step 3: Cross multiply
    4,407.79x = 6,613.70 × 1,909.74
  4. Step 4: Simplify right side
    4,407.79x = 12,630,404.82
  5. Step 5: Solve for x
    x = 12,630,404.82/4,407.79
  6. Step 6: Final answer
    x = 2,865.48

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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.