Home / 4,915.55-6,785.78-2,898.35

Finding the Fourth Proportional to 4,915.55, 6,785.78 and 2,898.35

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Solution

The fourth proportional to 4,915.55, 6,785.78 and 2,898.35 is: 4,001.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,915.55 : 6,785.78 = 2,898.35 : x
  2. Step 2: Convert to fraction form
    4,915.55/6,785.78 = 2,898.35/x
  3. Step 3: Cross multiply
    4,915.55x = 6,785.78 × 2,898.35
  4. Step 4: Simplify right side
    4,915.55x = 19,667,565.46
  5. Step 5: Solve for x
    x = 19,667,565.46/4,915.55
  6. Step 6: Final answer
    x = 4,001.09

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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.