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Finding the Fourth Proportional to 1,410.26, 1,946.40 and 969.17

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Solution

The fourth proportional to 1,410.26, 1,946.40 and 969.17 is: 1,337.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,410.26 : 1,946.40 = 969.17 : x
  2. Step 2: Convert to fraction form
    1,410.26/1,946.40 = 969.17/x
  3. Step 3: Cross multiply
    1,410.26x = 1,946.40 × 969.17
  4. Step 4: Simplify right side
    1,410.26x = 1,886,392.49
  5. Step 5: Solve for x
    x = 1,886,392.49/1,410.26
  6. Step 6: Final answer
    x = 1,337.62

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1.5x scale

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.