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Finding the Fourth Proportional to 1,705.05, 2,352.54 and 1,075.58

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Solution

The fourth proportional to 1,705.05, 2,352.54 and 1,075.58 is: 1,484.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,705.05 : 2,352.54 = 1,075.58 : x
  2. Step 2: Convert to fraction form
    1,705.05/2,352.54 = 1,075.58/x
  3. Step 3: Cross multiply
    1,705.05x = 2,352.54 × 1,075.58
  4. Step 4: Simplify right side
    1,705.05x = 2,530,346.07
  5. Step 5: Solve for x
    x = 2,530,346.07/1,705.05
  6. Step 6: Final answer
    x = 1,484.03

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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.