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Finding the Fourth Proportional to 5,547.55, 8,278.86 and 4,955.90

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Solution

The fourth proportional to 5,547.55, 8,278.86 and 4,955.90 is: 7,395.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,547.55 : 8,278.86 = 4,955.90 : x
  2. Step 2: Convert to fraction form
    5,547.55/8,278.86 = 4,955.90/x
  3. Step 3: Cross multiply
    5,547.55x = 8,278.86 × 4,955.90
  4. Step 4: Simplify right side
    5,547.55x = 41,029,202.27
  5. Step 5: Solve for x
    x = 41,029,202.27/5,547.55
  6. Step 6: Final answer
    x = 7,395.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.