Home / 6,858.77-9,465.28-3,875.04

Finding the Fourth Proportional to 6,858.77, 9,465.28 and 3,875.04

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Solution

The fourth proportional to 6,858.77, 9,465.28 and 3,875.04 is: 5,347.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,858.77 : 9,465.28 = 3,875.04 : x
  2. Step 2: Convert to fraction form
    6,858.77/9,465.28 = 3,875.04/x
  3. Step 3: Cross multiply
    6,858.77x = 9,465.28 × 3,875.04
  4. Step 4: Simplify right side
    6,858.77x = 36,678,338.61
  5. Step 5: Solve for x
    x = 36,678,338.61/6,858.77
  6. Step 6: Final answer
    x = 5,347.66

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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.