Home / 7,720.09-10,652.87-4,362.89

Finding the Fourth Proportional to 7,720.09, 10,652.87 and 4,362.89

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Solution

The fourth proportional to 7,720.09, 10,652.87 and 4,362.89 is: 6,020.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,720.09 : 10,652.87 = 4,362.89 : x
  2. Step 2: Convert to fraction form
    7,720.09/10,652.87 = 4,362.89/x
  3. Step 3: Cross multiply
    7,720.09x = 10,652.87 × 4,362.89
  4. Step 4: Simplify right side
    7,720.09x = 46,477,304.81
  5. Step 5: Solve for x
    x = 46,477,304.81/7,720.09
  6. Step 6: Final answer
    x = 6,020.31

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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.