Home / 2,128.13-2,936.02-1,569.93

Finding the Fourth Proportional to 2,128.13, 2,936.02 and 1,569.93

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Solution

The fourth proportional to 2,128.13, 2,936.02 and 1,569.93 is: 2,165.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,128.13 : 2,936.02 = 1,569.93 : x
  2. Step 2: Convert to fraction form
    2,128.13/2,936.02 = 1,569.93/x
  3. Step 3: Cross multiply
    2,128.13x = 2,936.02 × 1,569.93
  4. Step 4: Simplify right side
    2,128.13x = 4,609,345.88
  5. Step 5: Solve for x
    x = 4,609,345.88/2,128.13
  6. Step 6: Final answer
    x = 2,165.91

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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.