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Finding the Fourth Proportional to 1,754.83, 2,631.49 and 876.99

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Solution

The fourth proportional to 1,754.83, 2,631.49 and 876.99 is: 1,315.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,754.83 : 2,631.49 = 876.99 : x
  2. Step 2: Convert to fraction form
    1,754.83/2,631.49 = 876.99/x
  3. Step 3: Cross multiply
    1,754.83x = 2,631.49 × 876.99
  4. Step 4: Simplify right side
    1,754.83x = 2,307,798.09
  5. Step 5: Solve for x
    x = 2,307,798.09/1,754.83
  6. Step 6: Final answer
    x = 1,315.11

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Double scale
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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.