Home / 3,904.47-5,386.30-2,411.84

Finding the Fourth Proportional to 3,904.47, 5,386.30 and 2,411.84

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Solution

The fourth proportional to 3,904.47, 5,386.30 and 2,411.84 is: 3,327.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,904.47 : 5,386.30 = 2,411.84 : x
  2. Step 2: Convert to fraction form
    3,904.47/5,386.30 = 2,411.84/x
  3. Step 3: Cross multiply
    3,904.47x = 5,386.30 × 2,411.84
  4. Step 4: Simplify right side
    3,904.47x = 12,990,901.23
  5. Step 5: Solve for x
    x = 12,990,901.23/3,904.47
  6. Step 6: Final answer
    x = 3,327.19

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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.