Home / 1,715.28-2,569.32-1,456.44

Finding the Fourth Proportional to 1,715.28, 2,569.32 and 1,456.44

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Solution

The fourth proportional to 1,715.28, 2,569.32 and 1,456.44 is: 2,181.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,715.28 : 2,569.32 = 1,456.44 : x
  2. Step 2: Convert to fraction form
    1,715.28/2,569.32 = 1,456.44/x
  3. Step 3: Cross multiply
    1,715.28x = 2,569.32 × 1,456.44
  4. Step 4: Simplify right side
    1,715.28x = 3,742,060.42
  5. Step 5: Solve for x
    x = 3,742,060.42/1,715.28
  6. Step 6: Final answer
    x = 2,181.60

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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.