Home / 1,770.79-2,442.74-1,108.01

Finding the Fourth Proportional to 1,770.79, 2,442.74 and 1,108.01

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Solution

The fourth proportional to 1,770.79, 2,442.74 and 1,108.01 is: 1,528.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,770.79 : 2,442.74 = 1,108.01 : x
  2. Step 2: Convert to fraction form
    1,770.79/2,442.74 = 1,108.01/x
  3. Step 3: Cross multiply
    1,770.79x = 2,442.74 × 1,108.01
  4. Step 4: Simplify right side
    1,770.79x = 2,706,562.59
  5. Step 5: Solve for x
    x = 2,706,562.59/1,770.79
  6. Step 6: Final answer
    x = 1,528.45

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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.