Home / 2,547.45-3,821.58-1,572.21

Finding the Fourth Proportional to 2,547.45, 3,821.58 and 1,572.21

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Solution

The fourth proportional to 2,547.45, 3,821.58 and 1,572.21 is: 2,358.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,547.45 : 3,821.58 = 1,572.21 : x
  2. Step 2: Convert to fraction form
    2,547.45/3,821.58 = 1,572.21/x
  3. Step 3: Cross multiply
    2,547.45x = 3,821.58 × 1,572.21
  4. Step 4: Simplify right side
    2,547.45x = 6,008,326.29
  5. Step 5: Solve for x
    x = 6,008,326.29/2,547.45
  6. Step 6: Final answer
    x = 2,358.56

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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.