Home / 2,972.18-4,455.60-2,715.34

Finding the Fourth Proportional to 2,972.18, 4,455.60 and 2,715.34

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Solution

The fourth proportional to 2,972.18, 4,455.60 and 2,715.34 is: 4,070.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,972.18 : 4,455.60 = 2,715.34 : x
  2. Step 2: Convert to fraction form
    2,972.18/4,455.60 = 2,715.34/x
  3. Step 3: Cross multiply
    2,972.18x = 4,455.60 × 2,715.34
  4. Step 4: Simplify right side
    2,972.18x = 12,098,468.90
  5. Step 5: Solve for x
    x = 12,098,468.90/2,972.18
  6. Step 6: Final answer
    x = 4,070.57

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1.5x scale

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.