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Finding the Fourth Proportional to 1,566.18, 2,161.08 and 960.30

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Solution

The fourth proportional to 1,566.18, 2,161.08 and 960.30 is: 1,325.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,566.18 : 2,161.08 = 960.30 : x
  2. Step 2: Convert to fraction form
    1,566.18/2,161.08 = 960.30/x
  3. Step 3: Cross multiply
    1,566.18x = 2,161.08 × 960.30
  4. Step 4: Simplify right side
    1,566.18x = 2,075,285.12
  5. Step 5: Solve for x
    x = 2,075,285.12/1,566.18
  6. Step 6: Final answer
    x = 1,325.06

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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.