Home / 3,439.24-4,746.53-2,878.72

Finding the Fourth Proportional to 3,439.24, 4,746.53 and 2,878.72

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Solution

The fourth proportional to 3,439.24, 4,746.53 and 2,878.72 is: 3,972.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,439.24 : 4,746.53 = 2,878.72 : x
  2. Step 2: Convert to fraction form
    3,439.24/4,746.53 = 2,878.72/x
  3. Step 3: Cross multiply
    3,439.24x = 4,746.53 × 2,878.72
  4. Step 4: Simplify right side
    3,439.24x = 13,663,926.17
  5. Step 5: Solve for x
    x = 13,663,926.17/3,439.24
  6. Step 6: Final answer
    x = 3,972.95

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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.