Home / 2,053.13-2,830.49-1,388.93

Finding the Fourth Proportional to 2,053.13, 2,830.49 and 1,388.93

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Solution

The fourth proportional to 2,053.13, 2,830.49 and 1,388.93 is: 1,914.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,053.13 : 2,830.49 = 1,388.93 : x
  2. Step 2: Convert to fraction form
    2,053.13/2,830.49 = 1,388.93/x
  3. Step 3: Cross multiply
    2,053.13x = 2,830.49 × 1,388.93
  4. Step 4: Simplify right side
    2,053.13x = 3,931,352.48
  5. Step 5: Solve for x
    x = 3,931,352.48/2,053.13
  6. Step 6: Final answer
    x = 1,914.81

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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.