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Finding the Fourth Proportional to 6,547.86, 9,821.07 and 1,930.50

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Solution

The fourth proportional to 6,547.86, 9,821.07 and 1,930.50 is: 2,895.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,547.86 : 9,821.07 = 1,930.50 : x
  2. Step 2: Convert to fraction form
    6,547.86/9,821.07 = 1,930.50/x
  3. Step 3: Cross multiply
    6,547.86x = 9,821.07 × 1,930.50
  4. Step 4: Simplify right side
    6,547.86x = 18,959,575.64
  5. Step 5: Solve for x
    x = 18,959,575.64/6,547.86
  6. Step 6: Final answer
    x = 2,895.54

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Similar ratio
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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.