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Finding the Fourth Proportional to 1,504.13, 2,075.79 and 841.03

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Solution

The fourth proportional to 1,504.13, 2,075.79 and 841.03 is: 1,160.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,504.13 : 2,075.79 = 841.03 : x
  2. Step 2: Convert to fraction form
    1,504.13/2,075.79 = 841.03/x
  3. Step 3: Cross multiply
    1,504.13x = 2,075.79 × 841.03
  4. Step 4: Simplify right side
    1,504.13x = 1,745,798.05
  5. Step 5: Solve for x
    x = 1,745,798.05/1,504.13
  6. Step 6: Final answer
    x = 1,160.67

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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.