Home / 4,974.04-6,864.18-2,878.20

Finding the Fourth Proportional to 4,974.04, 6,864.18 and 2,878.20

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Solution

The fourth proportional to 4,974.04, 6,864.18 and 2,878.20 is: 3,971.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,974.04 : 6,864.18 = 2,878.20 : x
  2. Step 2: Convert to fraction form
    4,974.04/6,864.18 = 2,878.20/x
  3. Step 3: Cross multiply
    4,974.04x = 6,864.18 × 2,878.20
  4. Step 4: Simplify right side
    4,974.04x = 19,756,482.88
  5. Step 5: Solve for x
    x = 19,756,482.88/4,974.04
  6. Step 6: Final answer
    x = 3,971.92

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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.