Home / 1,613.20-2,421.60-1,507.44

Finding the Fourth Proportional to 1,613.20, 2,421.60 and 1,507.44

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Solution

The fourth proportional to 1,613.20, 2,421.60 and 1,507.44 is: 2,262.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,613.20 : 2,421.60 = 1,507.44 : x
  2. Step 2: Convert to fraction form
    1,613.20/2,421.60 = 1,507.44/x
  3. Step 3: Cross multiply
    1,613.20x = 2,421.60 × 1,507.44
  4. Step 4: Simplify right side
    1,613.20x = 3,650,416.70
  5. Step 5: Solve for x
    x = 3,650,416.70/1,613.20
  6. Step 6: Final answer
    x = 2,262.84

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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.