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Finding the Fourth Proportional to 1,519.66, 2,097.02 and 930.10

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Solution

The fourth proportional to 1,519.66, 2,097.02 and 930.10 is: 1,283.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,519.66 : 2,097.02 = 930.10 : x
  2. Step 2: Convert to fraction form
    1,519.66/2,097.02 = 930.10/x
  3. Step 3: Cross multiply
    1,519.66x = 2,097.02 × 930.10
  4. Step 4: Simplify right side
    1,519.66x = 1,950,438.30
  5. Step 5: Solve for x
    x = 1,950,438.30/1,519.66
  6. Step 6: Final answer
    x = 1,283.47

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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.