Home / 1,342.30-1,852.67-845.23

Finding the Fourth Proportional to 1,342.30, 1,852.67 and 845.23

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Solution

The fourth proportional to 1,342.30, 1,852.67 and 845.23 is: 1,166.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,342.30 : 1,852.67 = 845.23 : x
  2. Step 2: Convert to fraction form
    1,342.30/1,852.67 = 845.23/x
  3. Step 3: Cross multiply
    1,342.30x = 1,852.67 × 845.23
  4. Step 4: Simplify right side
    1,342.30x = 1,565,932.26
  5. Step 5: Solve for x
    x = 1,565,932.26/1,342.30
  6. Step 6: Final answer
    x = 1,166.60

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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.