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Finding the Fourth Proportional to 1,297.77, 1,946.77 and 373.40

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Solution

The fourth proportional to 1,297.77, 1,946.77 and 373.40 is: 560.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297.77 : 1,946.77 = 373.40 : x
  2. Step 2: Convert to fraction form
    1,297.77/1,946.77 = 373.40/x
  3. Step 3: Cross multiply
    1,297.77x = 1,946.77 × 373.40
  4. Step 4: Simplify right side
    1,297.77x = 726,927.85
  5. Step 5: Solve for x
    x = 726,927.85/1,297.77
  6. Step 6: Final answer
    x = 560.14

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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.