Home / 3,903.93-5,384.10-2,911.58

Finding the Fourth Proportional to 3,903.93, 5,384.10 and 2,911.58

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Solution

The fourth proportional to 3,903.93, 5,384.10 and 2,911.58 is: 4,015.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,903.93 : 5,384.10 = 2,911.58 : x
  2. Step 2: Convert to fraction form
    3,903.93/5,384.10 = 2,911.58/x
  3. Step 3: Cross multiply
    3,903.93x = 5,384.10 × 2,911.58
  4. Step 4: Simplify right side
    3,903.93x = 15,676,242.07
  5. Step 5: Solve for x
    x = 15,676,242.07/3,903.93
  6. Step 6: Final answer
    x = 4,015.50

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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.