Home / 2,856.13-4,271.64-2,485.56

Finding the Fourth Proportional to 2,856.13, 4,271.64 and 2,485.56

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Solution

The fourth proportional to 2,856.13, 4,271.64 and 2,485.56 is: 3,717.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,856.13 : 4,271.64 = 2,485.56 : x
  2. Step 2: Convert to fraction form
    2,856.13/4,271.64 = 2,485.56/x
  3. Step 3: Cross multiply
    2,856.13x = 4,271.64 × 2,485.56
  4. Step 4: Simplify right side
    2,856.13x = 10,617,417.52
  5. Step 5: Solve for x
    x = 10,617,417.52/2,856.13
  6. Step 6: Final answer
    x = 3,717.41

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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.