Home / 2,946.57-4,066.50-1,688.03

Finding the Fourth Proportional to 2,946.57, 4,066.50 and 1,688.03

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Solution

The fourth proportional to 2,946.57, 4,066.50 and 1,688.03 is: 2,329.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,946.57 : 4,066.50 = 1,688.03 : x
  2. Step 2: Convert to fraction form
    2,946.57/4,066.50 = 1,688.03/x
  3. Step 3: Cross multiply
    2,946.57x = 4,066.50 × 1,688.03
  4. Step 4: Simplify right side
    2,946.57x = 6,864,374.00
  5. Step 5: Solve for x
    x = 6,864,374.00/2,946.57
  6. Step 6: Final answer
    x = 2,329.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.