Home / 7,720.48-10,654.20-4,578.16

Finding the Fourth Proportional to 7,720.48, 10,654.20 and 4,578.16

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Solution

The fourth proportional to 7,720.48, 10,654.20 and 4,578.16 is: 6,317.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,720.48 : 10,654.20 = 4,578.16 : x
  2. Step 2: Convert to fraction form
    7,720.48/10,654.20 = 4,578.16/x
  3. Step 3: Cross multiply
    7,720.48x = 10,654.20 × 4,578.16
  4. Step 4: Simplify right side
    7,720.48x = 48,776,632.27
  5. Step 5: Solve for x
    x = 48,776,632.27/7,720.48
  6. Step 6: Final answer
    x = 6,317.82

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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.