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Finding the Fourth Proportional to 1,875.99, 2,588.51 and 1,079.60

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Solution

The fourth proportional to 1,875.99, 2,588.51 and 1,079.60 is: 1,489.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,875.99 : 2,588.51 = 1,079.60 : x
  2. Step 2: Convert to fraction form
    1,875.99/2,588.51 = 1,079.60/x
  3. Step 3: Cross multiply
    1,875.99x = 2,588.51 × 1,079.60
  4. Step 4: Simplify right side
    1,875.99x = 2,794,555.40
  5. Step 5: Solve for x
    x = 2,794,555.40/1,875.99
  6. Step 6: Final answer
    x = 1,489.64

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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.