Home / 5,607.60-8,411.64-1,909.68

Finding the Fourth Proportional to 5,607.60, 8,411.64 and 1,909.68

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Solution

The fourth proportional to 5,607.60, 8,411.64 and 1,909.68 is: 2,864.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,607.60 : 8,411.64 = 1,909.68 : x
  2. Step 2: Convert to fraction form
    5,607.60/8,411.64 = 1,909.68/x
  3. Step 3: Cross multiply
    5,607.60x = 8,411.64 × 1,909.68
  4. Step 4: Simplify right side
    5,607.60x = 16,063,540.68
  5. Step 5: Solve for x
    x = 16,063,540.68/5,607.60
  6. Step 6: Final answer
    x = 2,864.60

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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.