Home / 2,547.14-3,818.31-1,921.47

Finding the Fourth Proportional to 2,547.14, 3,818.31 and 1,921.47

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Solution

The fourth proportional to 2,547.14, 3,818.31 and 1,921.47 is: 2,880.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,547.14 : 3,818.31 = 1,921.47 : x
  2. Step 2: Convert to fraction form
    2,547.14/3,818.31 = 1,921.47/x
  3. Step 3: Cross multiply
    2,547.14x = 3,818.31 × 1,921.47
  4. Step 4: Simplify right side
    2,547.14x = 7,336,768.12
  5. Step 5: Solve for x
    x = 7,336,768.12/2,547.14
  6. Step 6: Final answer
    x = 2,880.40

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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.