Home / 5,657.60-8,486.40-2,892.80

Finding the Fourth Proportional to 5,657.60, 8,486.40 and 2,892.80

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Solution

The fourth proportional to 5,657.60, 8,486.40 and 2,892.80 is: 4,339.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,657.60 : 8,486.40 = 2,892.80 : x
  2. Step 2: Convert to fraction form
    5,657.60/8,486.40 = 2,892.80/x
  3. Step 3: Cross multiply
    5,657.60x = 8,486.40 × 2,892.80
  4. Step 4: Simplify right side
    5,657.60x = 24,549,457.92
  5. Step 5: Solve for x
    x = 24,549,457.92/5,657.60
  6. Step 6: Final answer
    x = 4,339.20

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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.