Home / 2,899.10-4,348.65-2,785.70

Finding the Fourth Proportional to 2,899.10, 4,348.65 and 2,785.70

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Solution

The fourth proportional to 2,899.10, 4,348.65 and 2,785.70 is: 4,178.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,899.10 : 4,348.65 = 2,785.70 : x
  2. Step 2: Convert to fraction form
    2,899.10/4,348.65 = 2,785.70/x
  3. Step 3: Cross multiply
    2,899.10x = 4,348.65 × 2,785.70
  4. Step 4: Simplify right side
    2,899.10x = 12,114,034.31
  5. Step 5: Solve for x
    x = 12,114,034.31/2,899.10
  6. Step 6: Final answer
    x = 4,178.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.