Home / 6,639.48-9,162.16-3,655.25

Finding the Fourth Proportional to 6,639.48, 9,162.16 and 3,655.25

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Solution

The fourth proportional to 6,639.48, 9,162.16 and 3,655.25 is: 5,044.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,639.48 : 9,162.16 = 3,655.25 : x
  2. Step 2: Convert to fraction form
    6,639.48/9,162.16 = 3,655.25/x
  3. Step 3: Cross multiply
    6,639.48x = 9,162.16 × 3,655.25
  4. Step 4: Simplify right side
    6,639.48x = 33,490,011.08
  5. Step 5: Solve for x
    x = 33,490,011.08/6,639.48
  6. Step 6: Final answer
    x = 5,044.07

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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.