Home / 4,970.84-6,860.40-2,874.92

Finding the Fourth Proportional to 4,970.84, 6,860.40 and 2,874.92

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Solution

The fourth proportional to 4,970.84, 6,860.40 and 2,874.92 is: 3,967.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,970.84 : 6,860.40 = 2,874.92 : x
  2. Step 2: Convert to fraction form
    4,970.84/6,860.40 = 2,874.92/x
  3. Step 3: Cross multiply
    4,970.84x = 6,860.40 × 2,874.92
  4. Step 4: Simplify right side
    4,970.84x = 19,723,101.17
  5. Step 5: Solve for x
    x = 19,723,101.17/4,970.84
  6. Step 6: Final answer
    x = 3,967.76

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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.