Home / 1,875.09-2,587.62-1,129.09

Finding the Fourth Proportional to 1,875.09, 2,587.62 and 1,129.09

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Solution

The fourth proportional to 1,875.09, 2,587.62 and 1,129.09 is: 1,558.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,875.09 : 2,587.62 = 1,129.09 : x
  2. Step 2: Convert to fraction form
    1,875.09/2,587.62 = 1,129.09/x
  3. Step 3: Cross multiply
    1,875.09x = 2,587.62 × 1,129.09
  4. Step 4: Simplify right side
    1,875.09x = 2,921,655.87
  5. Step 5: Solve for x
    x = 2,921,655.87/1,875.09
  6. Step 6: Final answer
    x = 1,558.14

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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.