Home / 3,875.93-5,348.78-2,107.53

Finding the Fourth Proportional to 3,875.93, 5,348.78 and 2,107.53

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Solution

The fourth proportional to 3,875.93, 5,348.78 and 2,107.53 is: 2,908.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,875.93 : 5,348.78 = 2,107.53 : x
  2. Step 2: Convert to fraction form
    3,875.93/5,348.78 = 2,107.53/x
  3. Step 3: Cross multiply
    3,875.93x = 5,348.78 × 2,107.53
  4. Step 4: Simplify right side
    3,875.93x = 11,272,690.71
  5. Step 5: Solve for x
    x = 11,272,690.71/3,875.93
  6. Step 6: Final answer
    x = 2,908.39

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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.