Home / 4,120.54-5,687.40-2,547.74

Finding the Fourth Proportional to 4,120.54, 5,687.40 and 2,547.74

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Solution

The fourth proportional to 4,120.54, 5,687.40 and 2,547.74 is: 3,516.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,120.54 : 5,687.40 = 2,547.74 : x
  2. Step 2: Convert to fraction form
    4,120.54/5,687.40 = 2,547.74/x
  3. Step 3: Cross multiply
    4,120.54x = 5,687.40 × 2,547.74
  4. Step 4: Simplify right side
    4,120.54x = 14,490,016.48
  5. Step 5: Solve for x
    x = 14,490,016.48/4,120.54
  6. Step 6: Final answer
    x = 3,516.53

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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.