Home / 5,613.60-8,420.40-5,492.10

Finding the Fourth Proportional to 5,613.60, 8,420.40 and 5,492.10

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Solution

The fourth proportional to 5,613.60, 8,420.40 and 5,492.10 is: 8,238.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,613.60 : 8,420.40 = 5,492.10 : x
  2. Step 2: Convert to fraction form
    5,613.60/8,420.40 = 5,492.10/x
  3. Step 3: Cross multiply
    5,613.60x = 8,420.40 × 5,492.10
  4. Step 4: Simplify right side
    5,613.60x = 46,245,678.84
  5. Step 5: Solve for x
    x = 46,245,678.84/5,613.60
  6. Step 6: Final answer
    x = 8,238.15

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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.