Home / 7,781.27-10,740.09-4,799.55

Finding the Fourth Proportional to 7,781.27, 10,740.09 and 4,799.55

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Solution

The fourth proportional to 7,781.27, 10,740.09 and 4,799.55 is: 6,624.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,781.27 : 10,740.09 = 4,799.55 : x
  2. Step 2: Convert to fraction form
    7,781.27/10,740.09 = 4,799.55/x
  3. Step 3: Cross multiply
    7,781.27x = 10,740.09 × 4,799.55
  4. Step 4: Simplify right side
    7,781.27x = 51,547,657.23
  5. Step 5: Solve for x
    x = 51,547,657.23/7,781.27
  6. Step 6: Final answer
    x = 6,624.59

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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.