Home / 2,715.48-4,072.32-1,071.60

Finding the Fourth Proportional to 2,715.48, 4,072.32 and 1,071.60

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Solution

The fourth proportional to 2,715.48, 4,072.32 and 1,071.60 is: 1,607.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,715.48 : 4,072.32 = 1,071.60 : x
  2. Step 2: Convert to fraction form
    2,715.48/4,072.32 = 1,071.60/x
  3. Step 3: Cross multiply
    2,715.48x = 4,072.32 × 1,071.60
  4. Step 4: Simplify right side
    2,715.48x = 4,363,898.11
  5. Step 5: Solve for x
    x = 4,363,898.11/2,715.48
  6. Step 6: Final answer
    x = 1,607.04

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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.