Home / 3,875.31-5,347.95-2,106.93

Finding the Fourth Proportional to 3,875.31, 5,347.95 and 2,106.93

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Solution

The fourth proportional to 3,875.31, 5,347.95 and 2,106.93 is: 2,907.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,875.31 : 5,347.95 = 2,106.93 : x
  2. Step 2: Convert to fraction form
    3,875.31/5,347.95 = 2,106.93/x
  3. Step 3: Cross multiply
    3,875.31x = 5,347.95 × 2,106.93
  4. Step 4: Simplify right side
    3,875.31x = 11,267,756.29
  5. Step 5: Solve for x
    x = 11,267,756.29/3,875.31
  6. Step 6: Final answer
    x = 2,907.58

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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.