Home / 1,904.65-2,628.40-1,053.90

Finding the Fourth Proportional to 1,904.65, 2,628.40 and 1,053.90

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Solution

The fourth proportional to 1,904.65, 2,628.40 and 1,053.90 is: 1,454.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,904.65 : 2,628.40 = 1,053.90 : x
  2. Step 2: Convert to fraction form
    1,904.65/2,628.40 = 1,053.90/x
  3. Step 3: Cross multiply
    1,904.65x = 2,628.40 × 1,053.90
  4. Step 4: Simplify right side
    1,904.65x = 2,770,070.76
  5. Step 5: Solve for x
    x = 2,770,070.76/1,904.65
  6. Step 6: Final answer
    x = 1,454.37

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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.