Home / 3,718.37-5,130.31-2,656.46

Finding the Fourth Proportional to 3,718.37, 5,130.31 and 2,656.46

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Solution

The fourth proportional to 3,718.37, 5,130.31 and 2,656.46 is: 3,665.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,718.37 : 5,130.31 = 2,656.46 : x
  2. Step 2: Convert to fraction form
    3,718.37/5,130.31 = 2,656.46/x
  3. Step 3: Cross multiply
    3,718.37x = 5,130.31 × 2,656.46
  4. Step 4: Simplify right side
    3,718.37x = 13,628,424.37
  5. Step 5: Solve for x
    x = 13,628,424.37/3,718.37
  6. Step 6: Final answer
    x = 3,665.17

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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.