Home / 2,810.17-3,878.02-1,551.31

Finding the Fourth Proportional to 2,810.17, 3,878.02 and 1,551.31

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Solution

The fourth proportional to 2,810.17, 3,878.02 and 1,551.31 is: 2,140.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,810.17 : 3,878.02 = 1,551.31 : x
  2. Step 2: Convert to fraction form
    2,810.17/3,878.02 = 1,551.31/x
  3. Step 3: Cross multiply
    2,810.17x = 3,878.02 × 1,551.31
  4. Step 4: Simplify right side
    2,810.17x = 6,016,011.21
  5. Step 5: Solve for x
    x = 6,016,011.21/2,810.17
  6. Step 6: Final answer
    x = 2,140.80

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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.