Home / 7,740.30-10,681.11-4,945.50

Finding the Fourth Proportional to 7,740.30, 10,681.11 and 4,945.50

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Solution

The fourth proportional to 7,740.30, 10,681.11 and 4,945.50 is: 6,824.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,740.30 : 10,681.11 = 4,945.50 : x
  2. Step 2: Convert to fraction form
    7,740.30/10,681.11 = 4,945.50/x
  3. Step 3: Cross multiply
    7,740.30x = 10,681.11 × 4,945.50
  4. Step 4: Simplify right side
    7,740.30x = 52,823,429.51
  5. Step 5: Solve for x
    x = 52,823,429.51/7,740.30
  6. Step 6: Final answer
    x = 6,824.47

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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.