Home / 4,971.84-6,860.38-2,875.56

Finding the Fourth Proportional to 4,971.84, 6,860.38 and 2,875.56

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Solution

The fourth proportional to 4,971.84, 6,860.38 and 2,875.56 is: 3,967.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,971.84 : 6,860.38 = 2,875.56 : x
  2. Step 2: Convert to fraction form
    4,971.84/6,860.38 = 2,875.56/x
  3. Step 3: Cross multiply
    4,971.84x = 6,860.38 × 2,875.56
  4. Step 4: Simplify right side
    4,971.84x = 19,727,434.31
  5. Step 5: Solve for x
    x = 19,727,434.31/4,971.84
  6. Step 6: Final answer
    x = 3,967.83

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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.