Home / 1,551.90-2,127.09-1,541.10

Finding the Fourth Proportional to 1,551.90, 2,127.09 and 1,541.10

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Solution

The fourth proportional to 1,551.90, 2,127.09 and 1,541.10 is: 2,112.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,551.90 : 2,127.09 = 1,541.10 : x
  2. Step 2: Convert to fraction form
    1,551.90/2,127.09 = 1,541.10/x
  3. Step 3: Cross multiply
    1,551.90x = 2,127.09 × 1,541.10
  4. Step 4: Simplify right side
    1,551.90x = 3,278,058.40
  5. Step 5: Solve for x
    x = 3,278,058.40/1,551.90
  6. Step 6: Final answer
    x = 2,112.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.