Home / 4,275.18-6,412.95-2,085.75

Finding the Fourth Proportional to 4,275.18, 6,412.95 and 2,085.75

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Solution

The fourth proportional to 4,275.18, 6,412.95 and 2,085.75 is: 3,128.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,275.18 : 6,412.95 = 2,085.75 : x
  2. Step 2: Convert to fraction form
    4,275.18/6,412.95 = 2,085.75/x
  3. Step 3: Cross multiply
    4,275.18x = 6,412.95 × 2,085.75
  4. Step 4: Simplify right side
    4,275.18x = 13,375,810.46
  5. Step 5: Solve for x
    x = 13,375,810.46/4,275.18
  6. Step 6: Final answer
    x = 3,128.71

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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.