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Finding the Fourth Proportional to 2,124.92, 3,186.14 and 970.04

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Solution

The fourth proportional to 2,124.92, 3,186.14 and 970.04 is: 1,454.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,124.92 : 3,186.14 = 970.04 : x
  2. Step 2: Convert to fraction form
    2,124.92/3,186.14 = 970.04/x
  3. Step 3: Cross multiply
    2,124.92x = 3,186.14 × 970.04
  4. Step 4: Simplify right side
    2,124.92x = 3,090,683.25
  5. Step 5: Solve for x
    x = 3,090,683.25/2,124.92
  6. Step 6: Final answer
    x = 1,454.49

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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.