Home / 6,858.87-9,465.12-3,875.10

Finding the Fourth Proportional to 6,858.87, 9,465.12 and 3,875.10

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Solution

The fourth proportional to 6,858.87, 9,465.12 and 3,875.10 is: 5,347.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,858.87 : 9,465.12 = 3,875.10 : x
  2. Step 2: Convert to fraction form
    6,858.87/9,465.12 = 3,875.10/x
  3. Step 3: Cross multiply
    6,858.87x = 9,465.12 × 3,875.10
  4. Step 4: Simplify right side
    6,858.87x = 36,678,286.51
  5. Step 5: Solve for x
    x = 36,678,286.51/6,858.87
  6. Step 6: Final answer
    x = 5,347.57

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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.