Home / 4,915.30-6,785.43-2,898.10

Finding the Fourth Proportional to 4,915.30, 6,785.43 and 2,898.10

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Solution

The fourth proportional to 4,915.30, 6,785.43 and 2,898.10 is: 4,000.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,915.30 : 6,785.43 = 2,898.10 : x
  2. Step 2: Convert to fraction form
    4,915.30/6,785.43 = 2,898.10/x
  3. Step 3: Cross multiply
    4,915.30x = 6,785.43 × 2,898.10
  4. Step 4: Simplify right side
    4,915.30x = 19,664,854.68
  5. Step 5: Solve for x
    x = 19,664,854.68/4,915.30
  6. Step 6: Final answer
    x = 4,000.74

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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.