Home / 4,781.16-7,121.28-4,567.92

Finding the Fourth Proportional to 4,781.16, 7,121.28 and 4,567.92

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Solution

The fourth proportional to 4,781.16, 7,121.28 and 4,567.92 is: 6,803.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,781.16 : 7,121.28 = 4,567.92 : x
  2. Step 2: Convert to fraction form
    4,781.16/7,121.28 = 4,567.92/x
  3. Step 3: Cross multiply
    4,781.16x = 7,121.28 × 4,567.92
  4. Step 4: Simplify right side
    4,781.16x = 32,529,437.34
  5. Step 5: Solve for x
    x = 32,529,437.34/4,781.16
  6. Step 6: Final answer
    x = 6,803.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.