Home / 7,421.86-10,242.19-4,018.91

Finding the Fourth Proportional to 7,421.86, 10,242.19 and 4,018.91

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Solution

The fourth proportional to 7,421.86, 10,242.19 and 4,018.91 is: 5,546.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,421.86 : 10,242.19 = 4,018.91 : x
  2. Step 2: Convert to fraction form
    7,421.86/10,242.19 = 4,018.91/x
  3. Step 3: Cross multiply
    7,421.86x = 10,242.19 × 4,018.91
  4. Step 4: Simplify right side
    7,421.86x = 41,162,439.81
  5. Step 5: Solve for x
    x = 41,162,439.81/7,421.86
  6. Step 6: Final answer
    x = 5,546.11

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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.