Home / 2,088.45-3,130.65-1,869.75

Finding the Fourth Proportional to 2,088.45, 3,130.65 and 1,869.75

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Solution

The fourth proportional to 2,088.45, 3,130.65 and 1,869.75 is: 2,802.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,088.45 : 3,130.65 = 1,869.75 : x
  2. Step 2: Convert to fraction form
    2,088.45/3,130.65 = 1,869.75/x
  3. Step 3: Cross multiply
    2,088.45x = 3,130.65 × 1,869.75
  4. Step 4: Simplify right side
    2,088.45x = 5,853,532.84
  5. Step 5: Solve for x
    x = 5,853,532.84/2,088.45
  6. Step 6: Final answer
    x = 2,802.81

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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.