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Finding the Fourth Proportional to 1,956.16, 2,916.14 and 1,926.19

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Solution

The fourth proportional to 1,956.16, 2,916.14 and 1,926.19 is: 2,871.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,956.16 : 2,916.14 = 1,926.19 : x
  2. Step 2: Convert to fraction form
    1,956.16/2,916.14 = 1,926.19/x
  3. Step 3: Cross multiply
    1,956.16x = 2,916.14 × 1,926.19
  4. Step 4: Simplify right side
    1,956.16x = 5,617,039.71
  5. Step 5: Solve for x
    x = 5,617,039.71/1,956.16
  6. Step 6: Final answer
    x = 2,871.46

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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.