Home / 1,975.31-2,956.53-1,455.10

Finding the Fourth Proportional to 1,975.31, 2,956.53 and 1,455.10

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Solution

The fourth proportional to 1,975.31, 2,956.53 and 1,455.10 is: 2,177.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,975.31 : 2,956.53 = 1,455.10 : x
  2. Step 2: Convert to fraction form
    1,975.31/2,956.53 = 1,455.10/x
  3. Step 3: Cross multiply
    1,975.31x = 2,956.53 × 1,455.10
  4. Step 4: Simplify right side
    1,975.31x = 4,302,039.53
  5. Step 5: Solve for x
    x = 4,302,039.53/1,975.31
  6. Step 6: Final answer
    x = 2,177.91

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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.