Home / 2,275.14-3,140.76-1,715.85

Finding the Fourth Proportional to 2,275.14, 3,140.76 and 1,715.85

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Solution

The fourth proportional to 2,275.14, 3,140.76 and 1,715.85 is: 2,368.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,275.14 : 3,140.76 = 1,715.85 : x
  2. Step 2: Convert to fraction form
    2,275.14/3,140.76 = 1,715.85/x
  3. Step 3: Cross multiply
    2,275.14x = 3,140.76 × 1,715.85
  4. Step 4: Simplify right side
    2,275.14x = 5,389,073.05
  5. Step 5: Solve for x
    x = 5,389,073.05/2,275.14
  6. Step 6: Final answer
    x = 2,368.68

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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.