Home / 3,760.40-5,186.76-2,643.68

Finding the Fourth Proportional to 3,760.40, 5,186.76 and 2,643.68

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Solution

The fourth proportional to 3,760.40, 5,186.76 and 2,643.68 is: 3,646.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,760.40 : 5,186.76 = 2,643.68 : x
  2. Step 2: Convert to fraction form
    3,760.40/5,186.76 = 2,643.68/x
  3. Step 3: Cross multiply
    3,760.40x = 5,186.76 × 2,643.68
  4. Step 4: Simplify right side
    3,760.40x = 13,712,133.68
  5. Step 5: Solve for x
    x = 13,712,133.68/3,760.40
  6. Step 6: Final answer
    x = 3,646.46

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Half scale
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Double scale
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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.