Home / 1,639.47-2,454.04-1,053.69

Finding the Fourth Proportional to 1,639.47, 2,454.04 and 1,053.69

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Solution

The fourth proportional to 1,639.47, 2,454.04 and 1,053.69 is: 1,577.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,639.47 : 2,454.04 = 1,053.69 : x
  2. Step 2: Convert to fraction form
    1,639.47/2,454.04 = 1,053.69/x
  3. Step 3: Cross multiply
    1,639.47x = 2,454.04 × 1,053.69
  4. Step 4: Simplify right side
    1,639.47x = 2,585,779.87
  5. Step 5: Solve for x
    x = 2,585,779.87/1,639.47
  6. Step 6: Final answer
    x = 1,577.20

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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.