Home / 7,042.32-9,720.60-4,388.16

Finding the Fourth Proportional to 7,042.32, 9,720.60 and 4,388.16

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Solution

The fourth proportional to 7,042.32, 9,720.60 and 4,388.16 is: 6,057.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,042.32 : 9,720.60 = 4,388.16 : x
  2. Step 2: Convert to fraction form
    7,042.32/9,720.60 = 4,388.16/x
  3. Step 3: Cross multiply
    7,042.32x = 9,720.60 × 4,388.16
  4. Step 4: Simplify right side
    7,042.32x = 42,655,548.10
  5. Step 5: Solve for x
    x = 42,655,548.10/7,042.32
  6. Step 6: Final answer
    x = 6,057.03

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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.