Home / 2,856.10-4,284.09-1,317.10

Finding the Fourth Proportional to 2,856.10, 4,284.09 and 1,317.10

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Solution

The fourth proportional to 2,856.10, 4,284.09 and 1,317.10 is: 1,975.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,856.10 : 4,284.09 = 1,317.10 : x
  2. Step 2: Convert to fraction form
    2,856.10/4,284.09 = 1,317.10/x
  3. Step 3: Cross multiply
    2,856.10x = 4,284.09 × 1,317.10
  4. Step 4: Simplify right side
    2,856.10x = 5,642,574.94
  5. Step 5: Solve for x
    x = 5,642,574.94/2,856.10
  6. Step 6: Final answer
    x = 1,975.62

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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.