Home / 1,638.06-2,261.28-1,048.93

Finding the Fourth Proportional to 1,638.06, 2,261.28 and 1,048.93

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Solution

The fourth proportional to 1,638.06, 2,261.28 and 1,048.93 is: 1,448.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,638.06 : 2,261.28 = 1,048.93 : x
  2. Step 2: Convert to fraction form
    1,638.06/2,261.28 = 1,048.93/x
  3. Step 3: Cross multiply
    1,638.06x = 2,261.28 × 1,048.93
  4. Step 4: Simplify right side
    1,638.06x = 2,371,922.71
  5. Step 5: Solve for x
    x = 2,371,922.71/1,638.06
  6. Step 6: Final answer
    x = 1,448.01

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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.