Home / 1,355.48-1,869.01-1,106.02

Finding the Fourth Proportional to 1,355.48, 1,869.01 and 1,106.02

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Solution

The fourth proportional to 1,355.48, 1,869.01 and 1,106.02 is: 1,525.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,355.48 : 1,869.01 = 1,106.02 : x
  2. Step 2: Convert to fraction form
    1,355.48/1,869.01 = 1,106.02/x
  3. Step 3: Cross multiply
    1,355.48x = 1,869.01 × 1,106.02
  4. Step 4: Simplify right side
    1,355.48x = 2,067,162.44
  5. Step 5: Solve for x
    x = 2,067,162.44/1,355.48
  6. Step 6: Final answer
    x = 1,525.04

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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.