Home / 6,930.60-10,395.55-2,547.78

Finding the Fourth Proportional to 6,930.60, 10,395.55 and 2,547.78

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Solution

The fourth proportional to 6,930.60, 10,395.55 and 2,547.78 is: 3,821.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,930.60 : 10,395.55 = 2,547.78 : x
  2. Step 2: Convert to fraction form
    6,930.60/10,395.55 = 2,547.78/x
  3. Step 3: Cross multiply
    6,930.60x = 10,395.55 × 2,547.78
  4. Step 4: Simplify right side
    6,930.60x = 26,485,574.38
  5. Step 5: Solve for x
    x = 26,485,574.38/6,930.60
  6. Step 6: Final answer
    x = 3,821.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.