Home / 1,663.90-2,294.45-1,160.34

Finding the Fourth Proportional to 1,663.90, 2,294.45 and 1,160.34

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Solution

The fourth proportional to 1,663.90, 2,294.45 and 1,160.34 is: 1,600.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,663.90 : 2,294.45 = 1,160.34 : x
  2. Step 2: Convert to fraction form
    1,663.90/2,294.45 = 1,160.34/x
  3. Step 3: Cross multiply
    1,663.90x = 2,294.45 × 1,160.34
  4. Step 4: Simplify right side
    1,663.90x = 2,662,336.31
  5. Step 5: Solve for x
    x = 2,662,336.31/1,663.90
  6. Step 6: Final answer
    x = 1,600.06

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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.