Home / 5,135.68-7,688.88-4,727.44

Finding the Fourth Proportional to 5,135.68, 7,688.88 and 4,727.44

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Solution

The fourth proportional to 5,135.68, 7,688.88 and 4,727.44 is: 7,077.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,135.68 : 7,688.88 = 4,727.44 : x
  2. Step 2: Convert to fraction form
    5,135.68/7,688.88 = 4,727.44/x
  3. Step 3: Cross multiply
    5,135.68x = 7,688.88 × 4,727.44
  4. Step 4: Simplify right side
    5,135.68x = 36,348,718.87
  5. Step 5: Solve for x
    x = 36,348,718.87/5,135.68
  6. Step 6: Final answer
    x = 7,077.68

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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.