Home / 1,645.84-2,267.35-1,147.58

Finding the Fourth Proportional to 1,645.84, 2,267.35 and 1,147.58

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Solution

The fourth proportional to 1,645.84, 2,267.35 and 1,147.58 is: 1,580.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,645.84 : 2,267.35 = 1,147.58 : x
  2. Step 2: Convert to fraction form
    1,645.84/2,267.35 = 1,147.58/x
  3. Step 3: Cross multiply
    1,645.84x = 2,267.35 × 1,147.58
  4. Step 4: Simplify right side
    1,645.84x = 2,601,965.51
  5. Step 5: Solve for x
    x = 2,601,965.51/1,645.84
  6. Step 6: Final answer
    x = 1,580.93

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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.