Home / 1,972.47-2,956.62-1,869.93

Finding the Fourth Proportional to 1,972.47, 2,956.62 and 1,869.93

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Solution

The fourth proportional to 1,972.47, 2,956.62 and 1,869.93 is: 2,802.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,972.47 : 2,956.62 = 1,869.93 : x
  2. Step 2: Convert to fraction form
    1,972.47/2,956.62 = 1,869.93/x
  3. Step 3: Cross multiply
    1,972.47x = 2,956.62 × 1,869.93
  4. Step 4: Simplify right side
    1,972.47x = 5,528,672.44
  5. Step 5: Solve for x
    x = 5,528,672.44/1,972.47
  6. Step 6: Final answer
    x = 2,802.92

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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.