Home / 5,490.28-7,582.74-3,718.81

Finding the Fourth Proportional to 5,490.28, 7,582.74 and 3,718.81

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Solution

The fourth proportional to 5,490.28, 7,582.74 and 3,718.81 is: 5,136.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,490.28 : 7,582.74 = 3,718.81 : x
  2. Step 2: Convert to fraction form
    5,490.28/7,582.74 = 3,718.81/x
  3. Step 3: Cross multiply
    5,490.28x = 7,582.74 × 3,718.81
  4. Step 4: Simplify right side
    5,490.28x = 28,198,775.33
  5. Step 5: Solve for x
    x = 28,198,775.33/5,490.28
  6. Step 6: Final answer
    x = 5,136.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.