Home / 1,981.70-2,959.08-1,773.93

Finding the Fourth Proportional to 1,981.70, 2,959.08 and 1,773.93

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Solution

The fourth proportional to 1,981.70, 2,959.08 and 1,773.93 is: 2,648.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,981.70 : 2,959.08 = 1,773.93 : x
  2. Step 2: Convert to fraction form
    1,981.70/2,959.08 = 1,773.93/x
  3. Step 3: Cross multiply
    1,981.70x = 2,959.08 × 1,773.93
  4. Step 4: Simplify right side
    1,981.70x = 5,249,200.78
  5. Step 5: Solve for x
    x = 5,249,200.78/1,981.70
  6. Step 6: Final answer
    x = 2,648.84

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.