Home / 1,622.09-2,428.53-1,261.10

Finding the Fourth Proportional to 1,622.09, 2,428.53 and 1,261.10

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Solution

The fourth proportional to 1,622.09, 2,428.53 and 1,261.10 is: 1,888.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,622.09 : 2,428.53 = 1,261.10 : x
  2. Step 2: Convert to fraction form
    1,622.09/2,428.53 = 1,261.10/x
  3. Step 3: Cross multiply
    1,622.09x = 2,428.53 × 1,261.10
  4. Step 4: Simplify right side
    1,622.09x = 3,062,607.04
  5. Step 5: Solve for x
    x = 3,062,607.04/1,622.09
  6. Step 6: Final answer
    x = 1,888.07

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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.