Home / 5,412.21-7,472.81-3,499.16

Finding the Fourth Proportional to 5,412.21, 7,472.81 and 3,499.16

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Solution

The fourth proportional to 5,412.21, 7,472.81 and 3,499.16 is: 4,831.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,412.21 : 7,472.81 = 3,499.16 : x
  2. Step 2: Convert to fraction form
    5,412.21/7,472.81 = 3,499.16/x
  3. Step 3: Cross multiply
    5,412.21x = 7,472.81 × 3,499.16
  4. Step 4: Simplify right side
    5,412.21x = 26,148,557.84
  5. Step 5: Solve for x
    x = 26,148,557.84/5,412.21
  6. Step 6: Final answer
    x = 4,831.40

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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.