Home / 1,643.12-2,265.60-1,526.48

Finding the Fourth Proportional to 1,643.12, 2,265.60 and 1,526.48

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Solution

The fourth proportional to 1,643.12, 2,265.60 and 1,526.48 is: 2,104.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,643.12 : 2,265.60 = 1,526.48 : x
  2. Step 2: Convert to fraction form
    1,643.12/2,265.60 = 1,526.48/x
  3. Step 3: Cross multiply
    1,643.12x = 2,265.60 × 1,526.48
  4. Step 4: Simplify right side
    1,643.12x = 3,458,393.09
  5. Step 5: Solve for x
    x = 3,458,393.09/1,643.12
  6. Step 6: Final answer
    x = 2,104.77

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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.