Home / 2,491.16-3,438.45-1,547.51

Finding the Fourth Proportional to 2,491.16, 3,438.45 and 1,547.51

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Solution

The fourth proportional to 2,491.16, 3,438.45 and 1,547.51 is: 2,135.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,491.16 : 3,438.45 = 1,547.51 : x
  2. Step 2: Convert to fraction form
    2,491.16/3,438.45 = 1,547.51/x
  3. Step 3: Cross multiply
    2,491.16x = 3,438.45 × 1,547.51
  4. Step 4: Simplify right side
    2,491.16x = 5,321,018.57
  5. Step 5: Solve for x
    x = 5,321,018.57/2,491.16
  6. Step 6: Final answer
    x = 2,135.96

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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.