Home / 6,740.48-9,301.87-3,908.40

Finding the Fourth Proportional to 6,740.48, 9,301.87 and 3,908.40

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Solution

The fourth proportional to 6,740.48, 9,301.87 and 3,908.40 is: 5,393.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,740.48 : 9,301.87 = 3,908.40 : x
  2. Step 2: Convert to fraction form
    6,740.48/9,301.87 = 3,908.40/x
  3. Step 3: Cross multiply
    6,740.48x = 9,301.87 × 3,908.40
  4. Step 4: Simplify right side
    6,740.48x = 36,355,428.71
  5. Step 5: Solve for x
    x = 36,355,428.71/6,740.48
  6. Step 6: Final answer
    x = 5,393.60

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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.