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Finding the Fourth Proportional to 1,973.60, 2,960.49 and 657.47

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Solution

The fourth proportional to 1,973.60, 2,960.49 and 657.47 is: 986.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,973.60 : 2,960.49 = 657.47 : x
  2. Step 2: Convert to fraction form
    1,973.60/2,960.49 = 657.47/x
  3. Step 3: Cross multiply
    1,973.60x = 2,960.49 × 657.47
  4. Step 4: Simplify right side
    1,973.60x = 1,946,433.36
  5. Step 5: Solve for x
    x = 1,946,433.36/1,973.60
  6. Step 6: Final answer
    x = 986.23

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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.